34 Questions
What is the origin of the erector spinae muscles as a group?
Posterior part of the iliac crest
Where does the longissimus muscle attach to in the cervical region?
Mastoid process of temporal bone
What action does the erector spinae muscles perform during unilateral contraction?
Laterally flexes vertebral column
Where does the iliocostalis muscle attach to in the cervical region?
Transverse processes
What is the insertion point of the sternocleidomastoid muscle?
Mastoid process of temporal bone
What is the action of the erector spinae muscles during bilateral contraction?
Extension of head & upper neck
Where does the spinalis muscle attach to in the upper thoracic region?
Spinous processes
What is the origin of the erector spinae muscles from the sacrum?
Posterior surface
What is the action of the sternocleidomastoid muscle during unilateral contraction?
Flexion of head & upper neck
What is the action of the Tensor Fascia Lata muscle at the hip joint?
Abduction
Which nerve innervates the Biceps Femoris muscle?
Sciatic nerve
What is the function of the Dorsal Interossei muscles?
Abduction of the fingers 2-4
Which nerve innervates the Abductor Pollicis Brevis muscle?
Median nerve
What is the type of joint at the shoulder?
Ball and socket joint
What is the action of the Rectus Femoris muscle at the knee joint?
Flexion of the leg
Which nerve innervates the Gastrocnemius muscle?
Tibial nerve
What is the function of the Adductor Longus muscle at the hip joint?
Adduction
Which nerve innervates the Semitendinosus muscle?
Sciatic nerve
What is the action of the Sartorius muscle at the knee joint?
Flexion of the leg
Which muscle group consists of anterior, middle, and posterior parts, each with specific attachments and functions?
Scalene group
Which muscle is involved in mastication?
Temporalis
Which muscle originates from the pubic crest and symphysis pubis?
Rectus abdominis muscle
Which muscle assists in trunk flexion, forced expiration, and trunk rotation?
External abdominal oblique muscle
Which muscle elevates and adducts the scapula, rotates the scapula downwards, and stabilizes it?
Rhomboid major and minor muscles
Which muscle draws the scapula medially and extends the head and neck?
Trapezius muscle
Which muscle lowers four ribs, adducts and internally rotates the arm?
Latissimus dorsi muscle
Which muscle adducts and medially rotates the humerus?
Pectoralis major muscle
Which muscle abducts the arm and stabilizes the glenohumeral joint?
Deltoid muscle
Which muscle extends the arm?
Triceps brachii muscle
Match the following muscles with their innervating nerves:
Abductor Pollicis Brevis = Median nerve Biceps Femoris = Sciatic nerve Sartorius = Femoral nerve Gastrocnemius = Tibial nerve
Match the following muscles with their actions at the hip joint:
Tensor Fascia Lata = Abduction Sartorius = Flexion Adductor Longus = Adduction Adductor Magnus = Extension
Match the following muscles with their origins:
Rectus Femoris = Anterior: AIIS Vastus Medialis = Intertrochanteric line Pectineus = Pectineal line of pubis Semitendinosus = Ischial tuberosity
Match the following joints with their types:
Shoulder = Synovial joint (ball & socket) Elbow = Synovial hinge joint Radiocarpal (wrist) = Condyloid synovial joint First carpometacarpal = Saddle joint
Match the following muscles with their actions at the knee joint:
Rectus Femoris = Ext. Of leg Vastus Medialis = Ext. Of leg Biceps Femoris = Leg flexion, leg external rotation Semitendinosus = Flexion, internal rotation
Study Notes
Anatomy of Upper Limb and Neck Muscles
- Scalene group consists of anterior, middle, and posterior parts, each with specific attachments and functions
- Muscles involved in mastication include temporalis, masseter, and the mandibular nerve
- Rectus abdominis muscle originates from the pubic crest and symphysis pubis and stabilizes the pelvis during walking
- External abdominal oblique muscle assists in trunk flexion, forced expiration, and trunk rotation
- Rhomboid major and minor muscles elevate and adduct the scapula, rotate the scapula downwards, and stabilize it
- Trapezius muscle draws the scapula medially and extends the head and neck, innervated by the accessory nerve
- Latissimus dorsi muscle lowers four ribs, adducts and internally rotates the arm, and is innervated by the thoracodorsal nerve
- Pectoralis major muscle adducts and medially rotates the humerus and is innervated by the lateral pectoral nerve
- Deltoid muscle abducts the arm and stabilizes the glenohumeral joint, innervated by the axillary nerve
- Subscapularis muscle internally rotates the arm and is innervated by the upper and lower subscapular nerves
- Biceps brachii muscle flexes the arm and is innervated by the musculocutaneous nerve
- Triceps brachii muscle extends the arm and is innervated by the radial nerve
Test your knowledge of the anatomy of upper limb and neck muscles with this quiz. Identify specific muscle attachments, functions, and innervation, including details about the scalene group, mastication muscles, and key muscles involved in trunk and arm movements.
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