Podcast
Questions and Answers
The anterior scalenes originate from the transverse processes of C3-C6 and insert on the ____ rib (scalene tubercle)
The anterior scalenes originate from the transverse processes of C3-C6 and insert on the ____ rib (scalene tubercle)
1st
The splenius capitis muscle is responsible for bilateral extension of the spine and head, helping in the maintenance of ____ posture
The splenius capitis muscle is responsible for bilateral extension of the spine and head, helping in the maintenance of ____ posture
erect
The infraspinatus muscle contributes to the lateral rotation of the arm and helps stabilize the ____ joint
The infraspinatus muscle contributes to the lateral rotation of the arm and helps stabilize the ____ joint
glenohumeral
The suprascapular nerve innervates the ____ muscle, aiding in its function of lateral rotation of the arm
The suprascapular nerve innervates the ____ muscle, aiding in its function of lateral rotation of the arm
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The latissimus dorsi muscle is responsible for adduction, medial rotation, and extension of the humerus, as well as anterior pelvic tilt and elevation of the ____
The latissimus dorsi muscle is responsible for adduction, medial rotation, and extension of the humerus, as well as anterior pelvic tilt and elevation of the ____
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The dorsal rami of spinal nerves innervate the splenius capitis muscle, assisting in its function of unilateral lateral flexion and rotation to the same side of the spine and ____
The dorsal rami of spinal nerves innervate the splenius capitis muscle, assisting in its function of unilateral lateral flexion and rotation to the same side of the spine and ____
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Subscapularis is responsible for ______ rotation of arm
Subscapularis is responsible for ______ rotation of arm
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Pectoralis Major aids in ______ of arm at shoulder joint
Pectoralis Major aids in ______ of arm at shoulder joint
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Brachialis is the prime mover for elbow ______
Brachialis is the prime mover for elbow ______
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Teres Major helps in ______ rotation of arm
Teres Major helps in ______ rotation of arm
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Splenius Cervicis is involved in the ______ of head & neck
Splenius Cervicis is involved in the ______ of head & neck
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Coracobrachialis originates from the coracoid ______
Coracobrachialis originates from the coracoid ______
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The thoracodorsal nerve innervates downward rotation of scapula and the ______ Brachii muscle.
The thoracodorsal nerve innervates downward rotation of scapula and the ______ Brachii muscle.
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The musculocutaneous nerve innervates the ______ Brachii muscle for extension of forearm at elbow.
The musculocutaneous nerve innervates the ______ Brachii muscle for extension of forearm at elbow.
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The radial nerve innervates the ______ Carpi radialis muscle for flexion of hand at wrist and radially deviation of wrist.
The radial nerve innervates the ______ Carpi radialis muscle for flexion of hand at wrist and radially deviation of wrist.
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The median nerve innervates the ______ palmaris longus muscle for flexion of hand at wrist.
The median nerve innervates the ______ palmaris longus muscle for flexion of hand at wrist.
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The median nerve innervates the ______ Carpi Ulnaris muscle for flexion of hand at wrist.
The median nerve innervates the ______ Carpi Ulnaris muscle for flexion of hand at wrist.
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The long head of the Biceps Brachii muscle originates from the supraglenoid tubercle and the ______ labrum.
The long head of the Biceps Brachii muscle originates from the supraglenoid tubercle and the ______ labrum.
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The nerve to quadratus femoris innervates the ______ muscle for lateral rotation of thigh at hip joint
The nerve to quadratus femoris innervates the ______ muscle for lateral rotation of thigh at hip joint
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The anconeus muscle supports the elbow when in full extension and aids in the ______ of forearm at elbow
The anconeus muscle supports the elbow when in full extension and aids in the ______ of forearm at elbow
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The vastus intermedius muscle is responsible for the ______ of leg at knee joint
The vastus intermedius muscle is responsible for the ______ of leg at knee joint
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The adductor longus muscle contributes to the ______ of thigh at hip joint
The adductor longus muscle contributes to the ______ of thigh at hip joint
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The sartorius muscle aids in the flexion, abduction, and ______ of thigh at hip joint
The sartorius muscle aids in the flexion, abduction, and ______ of thigh at hip joint
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The semitendinosus muscle is involved in the flexion of leg at knee joint and the ______ of thigh at hip joint
The semitendinosus muscle is involved in the flexion of leg at knee joint and the ______ of thigh at hip joint
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The Fibularis Longus muscle is responsible for ______ of foot and plantar flexion of foot
The Fibularis Longus muscle is responsible for ______ of foot and plantar flexion of foot
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The Fibularis brevis muscle aids in ______ of foot and plantar flexion of foot
The Fibularis brevis muscle aids in ______ of foot and plantar flexion of foot
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The Longus Coli muscle contributes to flexion and ______ flexion of neck
The Longus Coli muscle contributes to flexion and ______ flexion of neck
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The Splenius Capitis muscle aids in extension of head & neck through bilateral contraction and rotation & lateral flexion to ipsilateral side through unilateral contraction, helping in the maintenance of ______ posture
The Splenius Capitis muscle aids in extension of head & neck through bilateral contraction and rotation & lateral flexion to ipsilateral side through unilateral contraction, helping in the maintenance of ______ posture
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The Splenius Cervicis muscle assists in extension of head & neck through bilateral contraction and rotation & lateral flexion to ipsilateral side through unilateral contraction, helping in the maintenance of ______ posture
The Splenius Cervicis muscle assists in extension of head & neck through bilateral contraction and rotation & lateral flexion to ipsilateral side through unilateral contraction, helping in the maintenance of ______ posture
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The Semispinalis muscle originates from TPs of T6-T10 and contributes to ______ of spine
The Semispinalis muscle originates from TPs of T6-T10 and contributes to ______ of spine
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The Gluteus Maximus assists in ______ of thigh at hip joint
The Gluteus Maximus assists in ______ of thigh at hip joint
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The Gastrocnemius is responsible for ______ of foot
The Gastrocnemius is responsible for ______ of foot
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The Tibialis Anterior aids in ______ of foot at ankle
The Tibialis Anterior aids in ______ of foot at ankle
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The Middle Fiber Traps originate from the external occipital protuberance and the medial side of superior nuchal line, aiding in ______
The Middle Fiber Traps originate from the external occipital protuberance and the medial side of superior nuchal line, aiding in ______
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The Pectoralis Major aids in ______ of arm at shoulder joint
The Pectoralis Major aids in ______ of arm at shoulder joint
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The Splenius Capitis muscle helps in the maintenance of ______ posture
The Splenius Capitis muscle helps in the maintenance of ______ posture
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The ______ muscle aids in the flexion, abduction, and ______ of thigh at hip joint
The ______ muscle aids in the flexion, abduction, and ______ of thigh at hip joint
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The ______ muscle originates from the coracoid ______
The ______ muscle originates from the coracoid ______
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The ______ nerve innervates the ______ Carpi radialis muscle for flexion of hand at wrist and radially deviation of wrist.
The ______ nerve innervates the ______ Carpi radialis muscle for flexion of hand at wrist and radially deviation of wrist.
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The ______ muscle is responsible for ______ rotation of arm
The ______ muscle is responsible for ______ rotation of arm
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The thoracodorsal nerve innervates downward rotation of scapula and the ______ Brachii muscle.
The thoracodorsal nerve innervates downward rotation of scapula and the ______ Brachii muscle.
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Pectoralis Major aids in ______ of arm at shoulder joint
Pectoralis Major aids in ______ of arm at shoulder joint
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The Pectoralis Minor stabilizes scapula for arm movements, depresses & downwardly rotates scapula, and assists in scapular protraction from a retracted position. It also elevates ribs 3-5. Nerve: medial pectoral nerve (C8, T1). O: ribs 3-5 (anterior lateral portion), I: coracoid process of scapula (medial aspect). A: __________
The Pectoralis Minor stabilizes scapula for arm movements, depresses & downwardly rotates scapula, and assists in scapular protraction from a retracted position. It also elevates ribs 3-5. Nerve: medial pectoral nerve (C8, T1). O: ribs 3-5 (anterior lateral portion), I: coracoid process of scapula (medial aspect). A: __________
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Brachioradialis is responsible for flexion of forearm (at elbow), pronation of forearm when supinated, and supination of forearm when pronated. Nerve: radial nerve (C5, C6). O: lateral supracondylar ridge of humerus, I: styloid process of radius (lateral side). A: __________
Brachioradialis is responsible for flexion of forearm (at elbow), pronation of forearm when supinated, and supination of forearm when pronated. Nerve: radial nerve (C5, C6). O: lateral supracondylar ridge of humerus, I: styloid process of radius (lateral side). A: __________
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Extensor Carpi radialis longus aids in extension of hand at wrist and radially deviation (abduction) of hand at wrist. It also helps in flexion & supination of forearm at elbow (weak action). Nerve: radial nerve (C5, C6). O: lower lateral supracondylar ridge (below brachioradialis), I: base of 2nd metacarpal. A: __________
Extensor Carpi radialis longus aids in extension of hand at wrist and radially deviation (abduction) of hand at wrist. It also helps in flexion & supination of forearm at elbow (weak action). Nerve: radial nerve (C5, C6). O: lower lateral supracondylar ridge (below brachioradialis), I: base of 2nd metacarpal. A: __________
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Extensor Carpi radialis brevis is involved in extension of hand at wrist and radial deviation (abduction) of hand at wrist. It also contributes to flexion of forearm at elbow joint (weak action). Nerve: radial nerve (C7, C8). O: lateral epicondyle via common extensor tendon, I: base of 3rd metacarpal. A: __________
Extensor Carpi radialis brevis is involved in extension of hand at wrist and radial deviation (abduction) of hand at wrist. It also contributes to flexion of forearm at elbow joint (weak action). Nerve: radial nerve (C7, C8). O: lateral epicondyle via common extensor tendon, I: base of 3rd metacarpal. A: __________
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Extensor digitorum is responsible for extension of fingers #2-5 (at MCP, PIP & DIP joints), extension of hand at wrist, and extension of forearm at elbow (weak). Nerve: radial nerve (C7, C8). O: lateral epicondyle of humerus (via common extensor tendon), I: phalanges #2-5 (dorsal expansion hood). A: __________
Extensor digitorum is responsible for extension of fingers #2-5 (at MCP, PIP & DIP joints), extension of hand at wrist, and extension of forearm at elbow (weak). Nerve: radial nerve (C7, C8). O: lateral epicondyle of humerus (via common extensor tendon), I: phalanges #2-5 (dorsal expansion hood). A: __________
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Extensor Carpi Ulnaris contributes to extension of hand at wrist and radial deviation (abduction) of hand at wrist. It also assists in flexion of forearm at elbow joint (weak action). Nerve: radial nerve (C7, C8). O: humeral head: lateral epicondyle (via common extensor tendon), I: __________
Extensor Carpi Ulnaris contributes to extension of hand at wrist and radial deviation (abduction) of hand at wrist. It also assists in flexion of forearm at elbow joint (weak action). Nerve: radial nerve (C7, C8). O: humeral head: lateral epicondyle (via common extensor tendon), I: __________
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The Gluteus Medius inserts on the greater trochanter and is responsible for abduction of the thigh at the _____ joint
The Gluteus Medius inserts on the greater trochanter and is responsible for abduction of the thigh at the _____ joint
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The Soleus muscle originates from the soleal line of tibia and aids in plantar flexion of the _____
The Soleus muscle originates from the soleal line of tibia and aids in plantar flexion of the _____
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The Plantaris muscle inserts on the calcaneus and functions in plantar flexion of the ____ and knee flexion
The Plantaris muscle inserts on the calcaneus and functions in plantar flexion of the ____ and knee flexion
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The Popliteus muscle originates from the lateral femoral condyle and is involved in unlocking the _____ from an extended position
The Popliteus muscle originates from the lateral femoral condyle and is involved in unlocking the _____ from an extended position
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The Semimembranosus muscle inserts on the medial tibial condyle and contributes to flexion of the ____ at the knee joint
The Semimembranosus muscle inserts on the medial tibial condyle and contributes to flexion of the ____ at the knee joint
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The Gluteus Medius stabilizes the pelvis and prevents sagging of the free limb during _____
The Gluteus Medius stabilizes the pelvis and prevents sagging of the free limb during _____
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The Quadratus Lumborum originates from the posterior iliac crest & iliolumbar ligament and inserts on the 12th rib (inferior border) & TPs of L1-L4. It aids in the elevation of pelvis, lateral flexion of trunk, and depression of 12th rib. It is innervated by the ____ plexus (T12-L3)
The Quadratus Lumborum originates from the posterior iliac crest & iliolumbar ligament and inserts on the 12th rib (inferior border) & TPs of L1-L4. It aids in the elevation of pelvis, lateral flexion of trunk, and depression of 12th rib. It is innervated by the ____ plexus (T12-L3)
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The Vastus Medialis originates from the medial lip of linea aspera (intertrochanteric line) and inserts on the tibial tuberosity (via common quadriceps tendon & patellar ligament). It is responsible for the extension of leg at the knee joint and is innervated by the ______ nerve (L2 ,L3, L4)
The Vastus Medialis originates from the medial lip of linea aspera (intertrochanteric line) and inserts on the tibial tuberosity (via common quadriceps tendon & patellar ligament). It is responsible for the extension of leg at the knee joint and is innervated by the ______ nerve (L2 ,L3, L4)
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The Rectus Femoris originates from the anterior head: anterior inferior iliac spine (AIIS); posterior head: just superior to rim of acetabulum (supra-acetabular groove) and inserts on the tibial tuberosity (via common quadriceps tendon & patellar ligament). It is involved in the extension of leg at knee joint and flexion of thigh at hip joint. It is innervated by the ______ nerve (L2 ,L3, L4)
The Rectus Femoris originates from the anterior head: anterior inferior iliac spine (AIIS); posterior head: just superior to rim of acetabulum (supra-acetabular groove) and inserts on the tibial tuberosity (via common quadriceps tendon & patellar ligament). It is involved in the extension of leg at knee joint and flexion of thigh at hip joint. It is innervated by the ______ nerve (L2 ,L3, L4)
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The Adductor Magnus has an anterior head (adductor part) that originates from the inferior pubic ramus & ischial ramus; and a posterior head (______ part) that originates from the ischial tuberosity. It inserts on the linea aspera and adductor tubercle of femur (above medial epicondyle). It is responsible for adduction & extension of thigh at hip joint and laterally rotation of thigh. The anterior head is innervated by the obturator nerve (L2, L3, L4) while the posterior head is innervated by the sciatic nerve, tibial division (L4, L5)
The Adductor Magnus has an anterior head (adductor part) that originates from the inferior pubic ramus & ischial ramus; and a posterior head (______ part) that originates from the ischial tuberosity. It inserts on the linea aspera and adductor tubercle of femur (above medial epicondyle). It is responsible for adduction & extension of thigh at hip joint and laterally rotation of thigh. The anterior head is innervated by the obturator nerve (L2, L3, L4) while the posterior head is innervated by the sciatic nerve, tibial division (L4, L5)
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The Biceps Femoris has a long head that originates from the ischial tuberosity and a short head that originates from the lateral lip. It is involved in the flexion of leg at knee joint and extension of thigh at hip joint. It is innervated by the ______ nerve, tibial division (L4, L5)
The Biceps Femoris has a long head that originates from the ischial tuberosity and a short head that originates from the lateral lip. It is involved in the flexion of leg at knee joint and extension of thigh at hip joint. It is innervated by the ______ nerve, tibial division (L4, L5)
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The Anconeus muscle supports the elbow when in full extension and aids in the ____ of forearm at elbow
The Anconeus muscle supports the elbow when in full extension and aids in the ____ of forearm at elbow
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The Biceps Brachii muscle originates from the supraglenoid tubercle and the ______ labrum.
The Biceps Brachii muscle originates from the supraglenoid tubercle and the ______ labrum.
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The Longus Coli muscle contributes to flexion and ______ flexion of neck.
The Longus Coli muscle contributes to flexion and ______ flexion of neck.
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The ______ muscle originates from the coracoid ______.
The ______ muscle originates from the coracoid ______.
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Pectoralis Major aids in ______ of arm at shoulder joint.
Pectoralis Major aids in ______ of arm at shoulder joint.
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The Tibialis Anterior aids in ______ of foot at ankle.
The Tibialis Anterior aids in ______ of foot at ankle.
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The Gastrocnemius is responsible for ______ of foot.
The Gastrocnemius is responsible for ______ of foot.
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The Tensor Fascia Lata originates from the anterior supe______
The Tensor Fascia Lata originates from the anterior supe______
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Iliacus inserts on the lesser trochanter of the femur via the iliopsoas ten______
Iliacus inserts on the lesser trochanter of the femur via the iliopsoas ten______
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Psoas Major originates from the transverse processes of L1-L5, vertebral bodies of T12-L5 and intervening intervertebral d______
Psoas Major originates from the transverse processes of L1-L5, vertebral bodies of T12-L5 and intervening intervertebral d______
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The Vastus Lateralis inserts on the tibial tuberosity via the common quadriceps tendon & patellar lig______
The Vastus Lateralis inserts on the tibial tuberosity via the common quadriceps tendon & patellar lig______
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Adductor Brevis originates from the body and inferior ramus of the p______
Adductor Brevis originates from the body and inferior ramus of the p______
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Pectineus inserts on the pectineal line of femur; just below lesser trochanter on the posterior aspect of f______
Pectineus inserts on the pectineal line of femur; just below lesser trochanter on the posterior aspect of f______
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The Anterior Scalenes muscle aids in flexion & lateral flexion of neck; rotation of neck (weakly); elevation of ______ rib (if neck is stabilized). It originates from the transverse processes of C3-C6 and inserts on the ______ rib (scalene tubercle). It is innervated by cervical spinal nerves (ventral rami C3-C6).
The Anterior Scalenes muscle aids in flexion & lateral flexion of neck; rotation of neck (weakly); elevation of ______ rib (if neck is stabilized). It originates from the transverse processes of C3-C6 and inserts on the ______ rib (scalene tubercle). It is innervated by cervical spinal nerves (ventral rami C3-C6).
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The ______ muscle is responsible for lateral rotation of arm and helps stabilize the glenohumeral joint. It originates from the infraspinous fossa and inferior portion of spine of scapula, and inserts on the greater tubercle of humerus.
The ______ muscle is responsible for lateral rotation of arm and helps stabilize the glenohumeral joint. It originates from the infraspinous fossa and inferior portion of spine of scapula, and inserts on the greater tubercle of humerus.
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The Latissimus Dorsi muscle aids in adduction, ______ rotation & extension of humerus; anterior pelvic tilt, elevation of pelvis; depression of scapula. It originates from SP T7-L5; thoracolumbar fascia; iliac crest; posterior sacrum, ribs 9-12; inferior angle of scapula (occasionally) and inserts on the ______ lip of bicipital groove of humerus.
The Latissimus Dorsi muscle aids in adduction, ______ rotation & extension of humerus; anterior pelvic tilt, elevation of pelvis; depression of scapula. It originates from SP T7-L5; thoracolumbar fascia; iliac crest; posterior sacrum, ribs 9-12; inferior angle of scapula (occasionally) and inserts on the ______ lip of bicipital groove of humerus.
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The ______ muscle helps in stabilization of the scapula; elevation of the scapula; upward rotation of the scapula (upper fibers); downward rotation of the scapula (lower fibers); retraction (adduction) of the scapula; lateral flexion of the head (unilateral); extension of the head (bilateral). It is innervated by the spinal accessory (CN XI-11) and ventral rami of C2-C4.
The ______ muscle helps in stabilization of the scapula; elevation of the scapula; upward rotation of the scapula (upper fibers); downward rotation of the scapula (lower fibers); retraction (adduction) of the scapula; lateral flexion of the head (unilateral); extension of the head (bilateral). It is innervated by the spinal accessory (CN XI-11) and ventral rami of C2-C4.
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The Splenius Capitis muscle aids in ______ extension of the spine & head (maintenance of erect posture); unilateral lateral flexion & rotation to the same side of the spine & head; opposite muscles contract eccentrically for stabilization. It originates from the TPs of C7-T6 & articular process of C4-C6 (considered to be the medial part of semispinalis) and inserts on the occipital bone.
The Splenius Capitis muscle aids in ______ extension of the spine & head (maintenance of erect posture); unilateral lateral flexion & rotation to the same side of the spine & head; opposite muscles contract eccentrically for stabilization. It originates from the TPs of C7-T6 & articular process of C4-C6 (considered to be the medial part of semispinalis) and inserts on the occipital bone.
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The ______ muscle is responsible for adduction, medial rotation & extension of the humerus; anterior pelvic tilt, elevation of pelvis; depression of scapula. It originates from SP T7-L5; thoracolumbar fascia; iliac crest; posterior sacrum, ribs 9-12; inferior angle of scapula (occasionally) and inserts on the medial lip of bicipital groove of humerus.
The ______ muscle is responsible for adduction, medial rotation & extension of the humerus; anterior pelvic tilt, elevation of pelvis; depression of scapula. It originates from SP T7-L5; thoracolumbar fascia; iliac crest; posterior sacrum, ribs 9-12; inferior angle of scapula (occasionally) and inserts on the medial lip of bicipital groove of humerus.
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The nerve to quadratus femoris innervates the ______ muscle for lateral rotation of thigh at hip joint
The nerve to quadratus femoris innervates the ______ muscle for lateral rotation of thigh at hip joint
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The Rectus Abdominis stabilizes wrist to permit powerful thumb motion. Nerve: ulnar nerve (C7, C8). O: pubic crest & pubic symphysis. I: costal cartilage of ribs #5-7 & xyphoid process. A: flexion of trunk (at spinal joints); posterior pelvic tilt (at spinal joints); compression/stabilization of abdomen. N: intercostal nerves (T5-T12). The ______ biceps
The Rectus Abdominis stabilizes wrist to permit powerful thumb motion. Nerve: ulnar nerve (C7, C8). O: pubic crest & pubic symphysis. I: costal cartilage of ribs #5-7 & xyphoid process. A: flexion of trunk (at spinal joints); posterior pelvic tilt (at spinal joints); compression/stabilization of abdomen. N: intercostal nerves (T5-T12). The ______ biceps
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The Gluteus Maximus assists in ______ of thigh at hip joint
The Gluteus Maximus assists in ______ of thigh at hip joint
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The Transverse Abdominis aids in compression/stabilization of abdomen. Nerve: intercostal nerves (T7-L1). O: iliac crest, inguinal ligament, thoracolumbar fascia & lower costal cartilage. I: abdominal aponeurosis (rectus sheath). The ______ abdominis
The Transverse Abdominis aids in compression/stabilization of abdomen. Nerve: intercostal nerves (T7-L1). O: iliac crest, inguinal ligament, thoracolumbar fascia & lower costal cartilage. I: abdominal aponeurosis (rectus sheath). The ______ abdominis
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The Tibialis Anterior aids in ______ of foot at ankle
The Tibialis Anterior aids in ______ of foot at ankle
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The Internal Obliques aid in flexion, lateral flexion & ipsilateral rotation of trunk (at spinal joints); posterior tilt of pelvis (at lumbosacral joints); compression/stabilization of abdomen. Nerve: intercostal nerves (T7-L1). The ______ obliques
The Internal Obliques aid in flexion, lateral flexion & ipsilateral rotation of trunk (at spinal joints); posterior tilt of pelvis (at lumbosacral joints); compression/stabilization of abdomen. Nerve: intercostal nerves (T7-L1). The ______ obliques
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The Popliteus muscle originates from the lateral femoral condyle and is involved in unlocking the _____ from an extended position
The Popliteus muscle originates from the lateral femoral condyle and is involved in unlocking the _____ from an extended position
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The Diaphragm aids in compression/stabilization of abdomen. Nerve: intercostal nerves (T7-L1). O: vertebral: crura from bodies of L1, 2 (left), L1-3 (right); costal part: medial & lateral arcuate ligaments, inner aspect of lower six ribs; sternal: two slips from post as. The ______ diaphragm
The Diaphragm aids in compression/stabilization of abdomen. Nerve: intercostal nerves (T7-L1). O: vertebral: crura from bodies of L1, 2 (left), L1-3 (right); costal part: medial & lateral arcuate ligaments, inner aspect of lower six ribs; sternal: two slips from post as. The ______ diaphragm
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The Pectoralis Major aids in ______ of arm at shoulder joint
The Pectoralis Major aids in ______ of arm at shoulder joint
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The Rectus Abdominis stabilizes wrist to permit powerful thumb motion. Nerve: ulnar nerve (C7, C8). O: pubic crest & pubic symphysis. I: costal cartilage of ribs #5-7 & xyphoid process. A: flexion of trunk (at spinal joints); posterior pelvic tilt (at spinal joints); compression/stabilization of abdomen. N: intercostal nerves (T5-T12). The ______ biceps
The Rectus Abdominis stabilizes wrist to permit powerful thumb motion. Nerve: ulnar nerve (C7, C8). O: pubic crest & pubic symphysis. I: costal cartilage of ribs #5-7 & xyphoid process. A: flexion of trunk (at spinal joints); posterior pelvic tilt (at spinal joints); compression/stabilization of abdomen. N: intercostal nerves (T5-T12). The ______ biceps
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The Biceps Femoris has a long head that originates from the ischial tuberosity and a short head that originates from the lateral lip. It is involved in the flexion of leg at knee joint and extension of thigh at hip joint. It is innervated by the ______ nerve, tibial division (L4, L5)
The Biceps Femoris has a long head that originates from the ischial tuberosity and a short head that originates from the lateral lip. It is involved in the flexion of leg at knee joint and extension of thigh at hip joint. It is innervated by the ______ nerve, tibial division (L4, L5)
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The Pectoralis Major aids in flexion, lateral flexion & contralateral rotation of trunk (at spinal joints); posterior pelvic tilt (at spinal joints); compression/stabilization of abdomen. Nerve: intercostal nerves (T7-T12). The ______ pectoralis
The Pectoralis Major aids in flexion, lateral flexion & contralateral rotation of trunk (at spinal joints); posterior pelvic tilt (at spinal joints); compression/stabilization of abdomen. Nerve: intercostal nerves (T7-T12). The ______ pectoralis
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The Quadratus Lumborum aids in the elevation of pelvis, lateral flexion of trunk, and depression of 12th rib. It is innervated by the ______ plexus (T12-L3). 💗💗💗💗
The Quadratus Lumborum aids in the elevation of pelvis, lateral flexion of trunk, and depression of 12th rib. It is innervated by the ______ plexus (T12-L3). 💗💗💗💗
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The Vastus Medialis is involved in the extension of leg at knee joint and is innervated by the ______ nerve (L2 ,L3, L4).
The Vastus Medialis is involved in the extension of leg at knee joint and is innervated by the ______ nerve (L2 ,L3, L4).
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The Rectus Femoris is involved in the extension of leg at knee joint and flexion of thigh at hip joint. It is innervated by the ______ nerve (L2 ,L3, L4).
The Rectus Femoris is involved in the extension of leg at knee joint and flexion of thigh at hip joint. It is innervated by the ______ nerve (L2 ,L3, L4).
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The Adductor Magnus aids in adduction & extension of thigh at hip joint and laterally rotation of thigh. It is innervated by the ______ nerve (L2, L3, L4) and sciatic nerve, tibial division (L4, L5).
The Adductor Magnus aids in adduction & extension of thigh at hip joint and laterally rotation of thigh. It is innervated by the ______ nerve (L2, L3, L4) and sciatic nerve, tibial division (L4, L5).
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The Biceps Femoris is involved in extension of leg at knee joint and is innervated by the ______ nerve (L2 ,L3, L4).
The Biceps Femoris is involved in extension of leg at knee joint and is innervated by the ______ nerve (L2 ,L3, L4).
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The Iliacus inserts on the lesser trochanter of the femur via the iliopsoas ______.
The Iliacus inserts on the lesser trochanter of the femur via the iliopsoas ______.
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The thoracodorsal nerve innervates downward rotation of scapula and the ______ Brachii muscle.
The thoracodorsal nerve innervates downward rotation of scapula and the ______ Brachii muscle.
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The radial nerve innervates the ______ Carpi radialis muscle for flexion of hand at wrist and radially deviation of wrist.
The radial nerve innervates the ______ Carpi radialis muscle for flexion of hand at wrist and radially deviation of wrist.
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The median nerve innervates the ______ palmaris longus muscle for flexion of hand at wrist.
The median nerve innervates the ______ palmaris longus muscle for flexion of hand at wrist.
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The nerve to quadratus femoris innervates the ______ muscle for lateral rotation of thigh at hip joint.
The nerve to quadratus femoris innervates the ______ muscle for lateral rotation of thigh at hip joint.
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Extensor digitorum is responsible for extension of fingers #2-5 (at MCP, PIP & DIP joints), extension of hand at wrist, and extension of forearm at elbow (weak). Nerve: radial nerve (C7, C8). O: lateral epicondyle of humerus (via common extensor tendon), I: phalanges #2-5 (dorsal expansion hood). A: ______
Extensor digitorum is responsible for extension of fingers #2-5 (at MCP, PIP & DIP joints), extension of hand at wrist, and extension of forearm at elbow (weak). Nerve: radial nerve (C7, C8). O: lateral epicondyle of humerus (via common extensor tendon), I: phalanges #2-5 (dorsal expansion hood). A: ______
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The musculocutaneous nerve innervates the ______ Brachii muscle for extension of forearm at elbow.
The musculocutaneous nerve innervates the ______ Brachii muscle for extension of forearm at elbow.
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The Fibularis Longus muscle is responsible for ______ of foot and plantar flexion of foot
The Fibularis Longus muscle is responsible for ______ of foot and plantar flexion of foot
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The Longus Coli muscle contributes to flexion and ______ flexion of neck
The Longus Coli muscle contributes to flexion and ______ flexion of neck
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The Rectus Abdominis stabilizes wrist to permit powerful thumb motion. Nerve: ulnar nerve (C7, C8). O: pubic crest & pubic symphysis. I: costal cartilage of ribs #5-7 & xyphoid process. A: flexion of trunk (at spinal joints); posterior pelvic tilt (at spinal joints); compression/stabilization of abdomen. N: intercostal nerves (T5-T12). The ______ biceps
The Rectus Abdominis stabilizes wrist to permit powerful thumb motion. Nerve: ulnar nerve (C7, C8). O: pubic crest & pubic symphysis. I: costal cartilage of ribs #5-7 & xyphoid process. A: flexion of trunk (at spinal joints); posterior pelvic tilt (at spinal joints); compression/stabilization of abdomen. N: intercostal nerves (T5-T12). The ______ biceps
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The Gastrocnemius is responsible for ______ of foot
The Gastrocnemius is responsible for ______ of foot
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Brachialis is the prime mover for elbow ______
Brachialis is the prime mover for elbow ______
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The nerve to quadratus femoris innervates the ______ muscle for lateral rotation of thigh at hip joint
The nerve to quadratus femoris innervates the ______ muscle for lateral rotation of thigh at hip joint
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The Rectus Abdominis stabilizes wrist to permit powerful thumb motion. Nerve: ulnar nerve (C7, C8). O: pubic crest & pubic symphysis. I: costal cartilage of ribs #5-7 & xyphoid process. A: flexion of trunk (at spinal joints); posterior pelvic tilt (at spinal joints); compression/stabilization of abdomen. N: intercostal nerves (T5-T12). The ______ biceps
The Rectus Abdominis stabilizes wrist to permit powerful thumb motion. Nerve: ulnar nerve (C7, C8). O: pubic crest & pubic symphysis. I: costal cartilage of ribs #5-7 & xyphoid process. A: flexion of trunk (at spinal joints); posterior pelvic tilt (at spinal joints); compression/stabilization of abdomen. N: intercostal nerves (T5-T12). The ______ biceps
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The Adductor Magnus has an anterior head (adductor part) that originates from the inferior pubic ramus & ischial ramus; and a posterior head (______ part) that originates from the ischial tuberosity. It inserts on the linea aspera and adductor tubercle of femur (above medial epicondyle). It is responsible for adduction & extension of thigh at hip joint and laterally rotation of thigh. The anterior head is innervated by the obturator nerve (L2, L3, L4) while the posterior head is innervated by the sciatic nerve, tibial division (L4, L5)
The Adductor Magnus has an anterior head (adductor part) that originates from the inferior pubic ramus & ischial ramus; and a posterior head (______ part) that originates from the ischial tuberosity. It inserts on the linea aspera and adductor tubercle of femur (above medial epicondyle). It is responsible for adduction & extension of thigh at hip joint and laterally rotation of thigh. The anterior head is innervated by the obturator nerve (L2, L3, L4) while the posterior head is innervated by the sciatic nerve, tibial division (L4, L5)
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The Longus Coli muscle contributes to flexion and ______ flexion of neck.
The Longus Coli muscle contributes to flexion and ______ flexion of neck.
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The infraspinatus muscle contributes to the lateral rotation of the arm and helps stabilize the ____ joint
The infraspinatus muscle contributes to the lateral rotation of the arm and helps stabilize the ____ joint
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The nerve to quadratus femoris innervates the ______ muscle for lateral rotation of thigh at hip joint
The nerve to quadratus femoris innervates the ______ muscle for lateral rotation of thigh at hip joint
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The anterior Scalenes muscle aids in flexion & lateral flexion of neck; rotation of neck (weakly); elevation of ______ rib (if neck is stabilized). It originates from the transverse processes of C3-C6 and inserts on the ______ rib (scalene tubercle). It is innervated by cervical spinal nerves (ventral rami C3-C6).
The anterior Scalenes muscle aids in flexion & lateral flexion of neck; rotation of neck (weakly); elevation of ______ rib (if neck is stabilized). It originates from the transverse processes of C3-C6 and inserts on the ______ rib (scalene tubercle). It is innervated by cervical spinal nerves (ventral rami C3-C6).
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The Flexor digitorum longus muscle is responsible for extension of toes 2-5 (at PIP & DIP joints); flexion of toes 2-5 (at MTP joints). It is innervated by the ______ nerve (S1, S2, S3)
The Flexor digitorum longus muscle is responsible for extension of toes 2-5 (at PIP & DIP joints); flexion of toes 2-5 (at MTP joints). It is innervated by the ______ nerve (S1, S2, S3)
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The Dorsal interossei muscles aid in abduction of toes 2-4 (at MTP); flexion toes 2-4 (at MTP). They are innervated by the ______ nerve (S2, S3)
The Dorsal interossei muscles aid in abduction of toes 2-4 (at MTP); flexion toes 2-4 (at MTP). They are innervated by the ______ nerve (S2, S3)
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The Plantar interossei muscles are responsible for adduction of toes 3-5 (at PIP & DIP joints); flexion of toes 3-5 (at MTP joints), extension of toes 3-5 (at PIP & DIP joints). They are innervated by the ______ nerve (S2, S3)
The Plantar interossei muscles are responsible for adduction of toes 3-5 (at PIP & DIP joints); flexion of toes 3-5 (at MTP joints), extension of toes 3-5 (at PIP & DIP joints). They are innervated by the ______ nerve (S2, S3)
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The Lower Fiber Traps muscles aid in stabilization of scapula; elevation scapula; upward rotation of scapula (upper fibers); downward rotation of scapula (lower fibers); retraction (adduction) of scapula; lateral flexion of head (unilateral); extension of head (bilateral). They are innervated by the spinal accessory (CN XI-11) and ventral rami of C2-C4. The Lower Fiber Traps originate from external occipital protuberance (EOP); medial side of superior nuchal line; nuchal ligament; SPs of C7-T12 and insert on ______
The Lower Fiber Traps muscles aid in stabilization of scapula; elevation scapula; upward rotation of scapula (upper fibers); downward rotation of scapula (lower fibers); retraction (adduction) of scapula; lateral flexion of head (unilateral); extension of head (bilateral). They are innervated by the spinal accessory (CN XI-11) and ventral rami of C2-C4. The Lower Fiber Traps originate from external occipital protuberance (EOP); medial side of superior nuchal line; nuchal ligament; SPs of C7-T12 and insert on ______
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The Middle Scalenes muscles originate from TP C2-C7 (posterior tubercle) and insert on ______
The Middle Scalenes muscles originate from TP C2-C7 (posterior tubercle) and insert on ______
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The Longus Coli muscle contributes to flexion and ______ flexion of neck. It originates from anterior tubercles of C1-C3 (except C2), transverse processes of C3-C7, and insert on ______
The Longus Coli muscle contributes to flexion and ______ flexion of neck. It originates from anterior tubercles of C1-C3 (except C2), transverse processes of C3-C7, and insert on ______
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Study Notes
Muscles of the Upper Limb
- Deltoid: originates from lateral 1/3 of clavicle, acromion, and spine of scapula; inserts into deltoid tuberosity of humerus; actions: abduction, flexion, and extension of arm; nerve supply: axillary nerve (C5, C6)
- Supraspinatus: originates from supraspinous fossa; inserts into greater tubercle of humerus; actions: abduction and stabilization of glenohumeral joint; nerve supply: suprascapular nerve (C5, 6)
- Infraspinatus: originates from infraspinous fossa and inferior portion of spine of scapula; inserts into greater tubercle of humerus; actions: lateral rotation of arm and stabilization of glenohumeral joint; nerve supply: suprascapular nerve (C5, 6)
Muscles of the Lower Limb
- Gluteus Maximus: originates from posterior iliac crest, sacrum, and coccyx; inserts into iliotibial band and gluteal tuberosity of femur; actions: extension of thigh, lateral rotation of thigh, and posterior pelvic tilt; nerve supply: inferior gluteal nerve (L5, S1, S2)
- Vastus Lateralis: originates from greater trochanter and linea aspera; inserts into tibial tuberosity via patellar ligament; actions: extension of leg; nerve supply: femoral nerve (L2, L3, L4)
- Soleus: originates from soleal line of tibia and proximal 1/3 of fibula; inserts into calcaneus via calcaneal or Achilles tendon; actions: plantar flexion of foot; nerve supply: tibial nerve (S1, S2)
Muscles of the Back and Neck
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Latissimus Dorsi: originates from spinous processes of T7-L5, thoracolumbar fascia, iliac crest, and posterior sacrum; inserts into medial lip of bicipital groove of humerus; actions: adduction, medial rotation, and extension of humerus; anterior pelvic tilt and elevation of pelvis; depression of scapula; nerve supply: thoracodorsal nerve (C6, C7, C8)
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Trapezius: originates from external occipital protuberance, medial side of superior nuchal line, nuchal ligament, and spinous processes of C7-T1; inserts into lateral 1/3 of clavicle, acromion, and spine of scapula; actions: stabilization of scapula, elevation of scapula, upward rotation of scapula, and retraction of scapula; nerve supply: spinal accessory (CN XI-11), ventral rami of C2-C4### Muscles of the Lower Limb
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Iliacus:
- Origin: lesser trochanter of femur (via iliopsoas tendon)
- Action: flexion and lateral rotation of thigh (at hip); flexion and lateral flexion of trunk (at spinal joints); anterior pelvic tilt (at hip joint)
- Nerve supply: lumbar plexus ventral rami (L1, L2, L3)
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Vastus Lateralis:
- Origin: lateral lip of linea aspera (also intertrochanteric line and lateral intermuscular septum)
- Insertion: tibial tuberosity (via common quadriceps tendon and patellar ligament)
- Action: extension of leg (at knee joint)
- Nerve supply: femoral nerve (L2, L3, L4)
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Adductor Brevis:
- Origin: body and inferior ramus of pubis
- Insertion: medial lip of linea aspera (superior 1/3 of femur)
- Action: adduction and flexion of thigh (at hip joint); lateral rotation of thigh
- Nerve supply: obturator nerve (L2, L3, L4) ...
Muscles of the Upper Limb
- Anconeus:
- Origin: lateral epicondyle of humerus
- Insertion: posterior ulna (lateral olecranon extending to lateral part of ulna)
- Action: extension of forearm at elbow; supports elbow when in full extension
- Nerve supply: radial nerve (C6, C7, C8)
- Biceps Brachii:
- Origin: long head: supraglenoid tubercle and glenohumeral labrum; short head: coracoid process of scapula
- Insertion: radial tuberosity; bicipital aponeurosis
- Action: flexion and supination of forearm; flexion of arm at shoulder; stabilization of anterior aspect of shoulder
- Nerve supply: musculocutaneous nerve (C5, C6) ...
Trunk and Abdominal Muscles
- Rectus Abdominis:
- Origin: pubic crest and pubic symphysis
- Insertion: costal cartilage of ribs #5-7 and xiphoid process
- Action: flexion of trunk (at spinal joints); posterior pelvic tilt (at spinal joints); compression/stabilization of abdomen
- Nerve supply: intercostal nerves (T5-T12)
- Transverse Abdominis:
- Origin: iliac crest, inguinal ligament, thoracolumbar fascia, and lower costal cartilage
- Insertion: abdominal aponeurosis (rectus sheath)
- Action: compression/stabilization of abdomen
- Nerve supply: intercostal nerves (T7-L1) ...
Back and Neck Muscles
- Lower Fiber Traps:
- Origin: external occipital protuberance (EOP); medial side of superior nuchal line; nuchal ligament; SPs of C7-T12
- Insertion: lateral 1/3 of clavicle; acromion; spine of scapula
- Action: stabilization of scapula; elevation of scapula; upward rotation of scapula (upper fibers); downward rotation of scapula (lower fibers)
- Nerve supply: spinal accessory (CN XI-11), ventral rami of C2-C4
- Longus Coli:
- Origin: lower anterior vertebral bodies and TP of C3-T3
- Insertion: anterior vertebral bodies and TP C1-C6
- Action: flexion and lateral flexion of neck; rotation of neck
- Nerve supply: cervical spinal nerves (ventral rami C2-C6)
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Test your knowledge on the muscles involved in flexion, lateral flexion, and extension of the neck, as well as elevation of the 1st rib. Identify the origin, insertion, and actions of muscles like anterior scalene, splenius cervicis, and teres major.
