Muscles & Joints

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Questions and Answers

Which muscle is responsible for forearm pronation?

Supinator

Pronator Teres (correct)

Rectus Femoris

Biceps Brachii

The Rectus Femoris muscle is primarily involved in leg adduction.

False

Name one muscle that contributes to thigh abduction.

Gluteus Medius

The __________ muscle facilitates the extension of the leg at the knee joint.

Quadriceps Femoris Signup and view all the answers

Match the following muscles to their function:

Biceps Brachii = Supination Gluteus Maximus = Extension Tensor Fasciae Latae = Abduction Hamstrings = Flexion Signup and view all the answers

Which muscles are involved in knee flexion?

Hamstrings and Gastrocnemius Signup and view all the answers

The Semitendinosus muscle is used for lateral rotation of the leg.

False Signup and view all the answers

What role does the Iliopsoas muscle play in the body?

Flexion of the thigh and assistance in vertebral column flexion Signup and view all the answers

The __________ muscle aids in medial rotation of the leg.

Semitendinosus Signup and view all the answers

Match the following muscle groups with their primary function:

Adductor Magnus = Adduction Supinator = Supination Gluteus Medius = Medial Rotation Piriformis = Lateral Rotation Signup and view all the answers

Which muscle is responsible for dorsiflexion of the foot?

Tibialis Anterior Muscle Signup and view all the answers

The Glenohumeral joint is a diarthrotic synovial ball-and-socket joint.

True Signup and view all the answers

Name one ligament that stabilizes the Acromioclavicular joint.

Acromioclavicular ligament Signup and view all the answers

The ___ provides stability to the knee joint by limiting movement during flexion and extension.

anterior and posterior cruciate ligaments Signup and view all the answers

Match the following joints with their respective movements:

Talocrural joint = Plantarflexion–dorsiflexion Subtalar joint = Inversion–eversion Ulnohumeral joint = Flexion & extension Hip joint = Flexion–extension, abduction–adduction Signup and view all the answers

What is the functional classification of the Distal Tibiofibular Joint?

Amphiarthrosis Signup and view all the answers

The knee joint is more stable than the hip due to its high mobility.

False Signup and view all the answers

What type of joint is the Proximal Radioulnar Joint?

Diarthrotic synovial pivot joint Signup and view all the answers

The structure that enhances the stability of the Glenohumeral joint is known as the ___ labrum.

glenoid Signup and view all the answers

Which ligament connects the head of the radius to the ulna?

Annular ligament Signup and view all the answers

Which muscle is primarily responsible for flexion of the vertebral column?

Rectus Abdominis Muscle Signup and view all the answers

The diaphragm muscle is an accessory muscle used during forced breathing.

False Signup and view all the answers

Name one muscle that helps in the lateral flexion of the vertebral column.

External Oblique Muscle or Internal Oblique Muscle Signup and view all the answers

The muscle that helps in the elevation of the scapula is the __________ muscle.

Levator Scapulae Signup and view all the answers

Which of the following muscles primarily assists in arm abduction?

Supraspinatus Muscle Signup and view all the answers

Match the muscle with its primary function:

Biceps Brachii = Flexion of the forearm Triceps Brachii = Extension of the forearm Erector Spinae = Extension of the vertebral column Pectoralis Major = Adduction of the arm Signup and view all the answers

The external oblique muscle is involved in contralateral rotation of the trunk.

True Signup and view all the answers

Which muscle is responsible for the extension of the forearm?

Triceps Brachii Muscle Signup and view all the answers

During shoulder internal rotation, the __________ muscle plays a key role.

Subscapularis Signup and view all the answers

Which muscle is NOT involved in forearm flexion?

Triceps Brachii Muscle Signup and view all the answers

Which of the following muscles is primarily responsible for forearm supination?

Supinator Signup and view all the answers

The Gluteus Maximus muscle is primarily involved in thigh adduction.

False Signup and view all the answers

Name one muscle that is involved in the flexion of the leg at the knee joint.

Hamstrings Signup and view all the answers

The __________ muscle assists in medial rotation of the leg at the knee joint.

Semitendinosus Signup and view all the answers

Match the following muscles with their roles:

Iliopsoas = Flexion of the thigh at the hip Gluteus Maximus = Extension of the thigh TFL (Tensor Fasciae Latae) = Abduction of the thigh Biceps Femoris = Flexion of the leg at the knee Signup and view all the answers

Which muscle is primarily responsible for lateral flexion of the vertebral column?

Internal Oblique Muscle Signup and view all the answers

Which of the following muscles primarily abducts the thigh?

Gluteus Medius Signup and view all the answers

The diaphragm is considered an accessory muscle of respiration.

False Signup and view all the answers

The Gastrocnemius muscle is involved in the extension at the knee joint.

False Signup and view all the answers

What muscle is responsible for shoulder adduction?

Pectoralis Major Muscle or Latissimus Dorsi Muscle Signup and view all the answers

The __________ muscle aids in the elevation of the scapula.

Trapezius Signup and view all the answers

What is the primary function of the Supinator muscle?

Supination of the forearm Signup and view all the answers

Match the following muscles to their respective functions:

Biceps Brachii Muscle = Flexion of the forearm Triceps Brachii Muscle = Extension of the forearm Pectoralis Major Muscle = Adduction of the arm Supraspinatus Muscle = Abduction of the arm Signup and view all the answers

During __________ rotation, the Piriformis muscle is primarily involved.

lateral Signup and view all the answers

Which muscle is involved in medial rotation of the arm at the shoulder joint?

Subscapularis Muscle Signup and view all the answers

Which muscle is primarily responsible for extending the leg at the knee joint?

Quadriceps Femoris Signup and view all the answers

The external oblique muscle is responsible for ipsilateral rotation of the trunk.

False Signup and view all the answers

Name one muscle that assists in forced breathing.

Sternocleidomastoid Muscle or Scalene Muscles Signup and view all the answers

The __________ muscle is responsible for flexion at the elbow joint.

Biceps Brachii Signup and view all the answers

Which of the following muscles is NOT involved in scapular retraction?

Serratus Anterior Muscle Signup and view all the answers

Which muscles are responsible for plantar flexion at the ankle? (Select all that apply)

Soleus Muscle Signup and view all the answers

The glenohumeral joint is more stable than the hip joint.

False Signup and view all the answers

What is the primary function of the Achilles tendon?

It connects the gastrocnemius and soleus muscles to the heel bone, facilitating plantar flexion. Signup and view all the answers

The __________ ligament stabilizes the lateral surface of the elbow joint.

Radial collateral Signup and view all the answers

Match the following joints with their classification:

Knee Joint = Synovial: biaxial hinge Talocrural Joint = Synovial: biaxial hinge Hip Joint = Synovial: ball-and-socket Proximal Radioulnar Joint = Synovial: pivot Signup and view all the answers

Which ligament limits vertical movement of the clavicle?

Coracoclavicular ligament Signup and view all the answers

Name one muscle that contributes to dorsiflexion at the ankle.

Tibialis Anterior Muscle Signup and view all the answers

The anterior cruciate ligament (ACL) prevents lateral displacement of the knee.

False Signup and view all the answers

The __________ is made of fibrocartilage tissue and enhances stability in the glenohumeral joint.

Glenoid Labrum Signup and view all the answers

Which joint is classified as a diarthrotic synovial pivot joint?

Proximal Radioulnar Joint Signup and view all the answers

Which muscles are primarily responsible for forearm pronation?

Pronator Teres and Pronator Quadratus Signup and view all the answers

Which of the following muscles is NOT involved in thigh flexion at the hip joint?

Gluteus Maximus Muscle Signup and view all the answers

Which group of muscles is responsible for hip adduction?

Adductor Longus, Adductor Brevis, Gracilis Signup and view all the answers

Which muscles are involved in medial rotation of the thigh at the hip joint?

Tensor Fasciae Latae, Gluteus Medius, Gluteus Minimus Signup and view all the answers

Which of the following muscles contributes to knee flexion?

Gastrocnemius Signup and view all the answers

What is the primary function of the Iliopsoas muscle?

Flexion of the thigh and assistance with vertebral column flexion Signup and view all the answers

Which muscles are primarily responsible for leg extension at the knee joint?

Quadriceps Femoris Signup and view all the answers

Which of the following muscles is NOT involved in lateral rotation of the thigh at the hip joint?

Gluteus Medius Signup and view all the answers

Which of these muscles aids in both knee flexion and leg medial rotation?

Semitendinosus Signup and view all the answers

Which muscle group is responsible for hip abduction?

Gluteus Minimus and Gluteus Medius Signup and view all the answers

Which of the following muscles is primarily responsible for plantar flexion of the foot?

Flexor Hallucis Longus Muscle Signup and view all the answers

What is the functional classification of the Hip Joint?

Diarthrosis Signup and view all the answers

Which ligament primarily stabilizes the lateral surface of the elbow joint?

Radial Collateral Ligament Signup and view all the answers

Which joint structure enhances glenohumeral joint stability?

Glenoid Labrum Signup and view all the answers

Which of the following best describes a characteristic of the knee joint?

It allows for flexion and extension only. Signup and view all the answers

Which ligaments are tightest when the knee is in extension?

Anterior Cruciate Ligament Signup and view all the answers

What is the structural classification of the Distal Tibiofibular Joint?

Fibrous: Syndesmosis Signup and view all the answers

Which of the following statements best describes the Glenohumeral Joint?

It offers an extremely mobile range of motion at the expense of stability. Signup and view all the answers

What type of joint is the Sacroiliac Joint?

Diarthrosis: Nonaxial Gliding Signup and view all the answers

What is the primary role of the Diaphragm Muscle during normal respiration?

To increase thoracic cavity volume Signup and view all the answers

Which of the following muscles is responsible for contralateral rotation of the trunk?

External Oblique Muscle Signup and view all the answers

Which muscles are primarily involved in protraction of the scapula?

Serratus Anterior and Pectoralis Minor Signup and view all the answers

Which muscle helps in extending the forearm at the elbow joint?

Triceps Brachii Muscle Signup and view all the answers

What is the main function of the Latissimus Dorsi Muscle at the shoulder joint?

Adduction Signup and view all the answers

Which muscle is NOT involved in forced breathing?

Diaphragm Muscle Signup and view all the answers

Which muscle is responsible for flexion of the arm at the shoulder joint?

Deltoid Muscle (anterior fibers) Signup and view all the answers

What action is primarily associated with the Internal Intercostal Muscles?

Forced expiration Signup and view all the answers

Which of the following is primarily responsible for scapular elevation?

Levator Scapulae Muscle Signup and view all the answers

Study Notes

Muscles of the Vertebral Column

Muscles responsible for flexion include the Rectus Abdominis, External Oblique, and Internal Oblique muscles
Muscles responsible for extension include the Erector Spinae muscles
Muscles responsible for lateral flexion include the External and Internal Oblique muscles
Muscles responsible for rotation include the External (contralateral) and Internal (ipsilateral) Oblique muscles

Muscles of Respiration

Primary muscles for normal breathing are the diaphragm and external intercostal muscles
Accessory muscles involved in deep or forced breathing include the sternocleidomastoid, scalene, internal intercostal, and abdominal muscles (rectus abdominis, external/internal obliques)

Muscles of the Scapula

Muscles responsible for protraction (forward movement) are the serratus anterior and pectoralis minor muscles
Muscles responsible for retraction (movement towards the spine) are the rhomboid major, rhomboid minor, and trapezius (middle fibers) muscles
Muscles responsible for elevation (lifting up) are the trapezius (upper fibers) and levator scapulae muscles
Muscles responsible for depression (lowering) are the trapezius (lower fibers) and pectoralis minor muscles

Muscles of the Arm

Muscles responsible for flexion of the arm: pectoralis major and deltoid (anterior fibers)
Muscles responsible for extension of the arm: latissimus dorsi and deltoid (posterior fibers)
Muscles responsible for abduction of the arm: deltoid (middle fibers) and supraspinatus
Muscles responsible for adduction of the arm: pectoralis major and latissimus dorsi
Muscles responsible for internal rotation: subscapularis, latissimus dorsi, and pectoralis major muscles
Muscles responsible for external rotation: infraspinatus and teres minor muscles

Muscles of the Forearm

Muscles responsible for flexion at the elbow: biceps brachii, brachialis, and brachioradialis muscles
Muscles responsible for extension at the elbow: triceps brachii and anconeus muscles
Muscles responsible for pronation (palm down): pronator teres and pronator quadratus muscles
Muscles responsible for supination (palm up): biceps brachii and supinator muscles

Muscles of the Thigh

Muscles responsible for hip flexion: iliopsoas (iliacus and psoas major), rectus femoris, and sartorius muscles
Muscles responsible for hip extension: gluteus maximus and hamstrings (biceps femoris, semitendinosus, semimembranosus)
Muscles responsible for hip abduction: gluteus medius, gluteus minimus, and tensor fasciae latae muscles
Muscles responsible for hip adduction: adductor longus, adductor brevis, adductor magnus, and gracilis muscles
Muscles responsible for medial rotation: gluteus medius, gluteus minimus, tensor fasciae latae, sartorius, and gluteus minimus
Muscles responsible for lateral rotation: gluteus maximus, and piriformis

Muscles of the Knee

Muscles responsible for flexion of the knee: hamstrings (biceps femoris, semitendinosus, semimembranosus), and gastrocnemius muscles
Muscles responsible for extension of the knee: quadriceps femoris (rectus femoris, vastus lateralis, vastus medialis, vastus intermedius)
Muscles responsible for medial rotation of the knee: semitendinosus, semimembranosus, and gracilis muscles.

Muscles of the Ankle

Muscles responsible for dorsiflexion (foot upwards): tibialis anterior, extensor digitorum longus, and extensor hallucis longus.
Muscles responsible for plantar flexion (foot downwards): gastrocnemius, soleus, plantaris, tibialis posterior, flexor digitorum longus, and flexor hallucis longus.

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Description

This quiz covers the major muscles involved in the flexion, extension, lateral flexion, and rotation of the vertebral column, as well as the primary and accessory muscles of respiration. You'll also learn about the muscles associated with scapula movement. Test your knowledge on the functional anatomy of these muscle groups.

Muscles & Joints

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Questions and Answers

Which muscle is responsible for forearm pronation?

The Rectus Femoris muscle is primarily involved in leg adduction.

Name one muscle that contributes to thigh abduction.

The __________ muscle facilitates the extension of the leg at the knee joint.

Match the following muscles to their function:

Which muscles are involved in knee flexion?

The Semitendinosus muscle is used for lateral rotation of the leg.

What role does the Iliopsoas muscle play in the body?

The __________ muscle aids in medial rotation of the leg.

Match the following muscle groups with their primary function:

Which muscle is responsible for dorsiflexion of the foot?

The Glenohumeral joint is a diarthrotic synovial ball-and-socket joint.

Name one ligament that stabilizes the Acromioclavicular joint.

The ___ provides stability to the knee joint by limiting movement during flexion and extension.

Match the following joints with their respective movements:

What is the functional classification of the Distal Tibiofibular Joint?

The knee joint is more stable than the hip due to its high mobility.

What type of joint is the Proximal Radioulnar Joint?

The structure that enhances the stability of the Glenohumeral joint is known as the ___ labrum.

Which ligament connects the head of the radius to the ulna?

Which muscle is primarily responsible for flexion of the vertebral column?

The diaphragm muscle is an accessory muscle used during forced breathing.

Name one muscle that helps in the lateral flexion of the vertebral column.

The muscle that helps in the elevation of the scapula is the __________ muscle.

Which of the following muscles primarily assists in arm abduction?

Match the muscle with its primary function:

The external oblique muscle is involved in contralateral rotation of the trunk.

Which muscle is responsible for the extension of the forearm?

During shoulder internal rotation, the __________ muscle plays a key role.

Which muscle is NOT involved in forearm flexion?

Which of the following muscles is primarily responsible for forearm supination?

The Gluteus Maximus muscle is primarily involved in thigh adduction.

Name one muscle that is involved in the flexion of the leg at the knee joint.

The __________ muscle assists in medial rotation of the leg at the knee joint.

Match the following muscles with their roles:

Which muscle is primarily responsible for lateral flexion of the vertebral column?

Which of the following muscles primarily abducts the thigh?

The diaphragm is considered an accessory muscle of respiration.

The Gastrocnemius muscle is involved in the extension at the knee joint.

What muscle is responsible for shoulder adduction?

The __________ muscle aids in the elevation of the scapula.

What is the primary function of the Supinator muscle?

Match the following muscles to their respective functions:

During __________ rotation, the Piriformis muscle is primarily involved.

Which muscle is involved in medial rotation of the arm at the shoulder joint?

Which muscle is primarily responsible for extending the leg at the knee joint?

The external oblique muscle is responsible for ipsilateral rotation of the trunk.

Name one muscle that assists in forced breathing.

The __________ muscle is responsible for flexion at the elbow joint.

Which of the following muscles is NOT involved in scapular retraction?

Which muscles are responsible for plantar flexion at the ankle? (Select all that apply)

The glenohumeral joint is more stable than the hip joint.

What is the primary function of the Achilles tendon?

The __________ ligament stabilizes the lateral surface of the elbow joint.

Match the following joints with their classification:

Which ligament limits vertical movement of the clavicle?

Name one muscle that contributes to dorsiflexion at the ankle.

The anterior cruciate ligament (ACL) prevents lateral displacement of the knee.

The __________ is made of fibrocartilage tissue and enhances stability in the glenohumeral joint.

Which joint is classified as a diarthrotic synovial pivot joint?

Which muscles are primarily responsible for forearm pronation?

Which of the following muscles is NOT involved in thigh flexion at the hip joint?

Which group of muscles is responsible for hip adduction?

Which muscles are involved in medial rotation of the thigh at the hip joint?

Which of the following muscles contributes to knee flexion?

What is the primary function of the Iliopsoas muscle?

Which muscles are primarily responsible for leg extension at the knee joint?

Which of the following muscles is NOT involved in lateral rotation of the thigh at the hip joint?

Which of these muscles aids in both knee flexion and leg medial rotation?

Which muscle group is responsible for hip abduction?

Which of the following muscles is primarily responsible for plantar flexion of the foot?

What is the functional classification of the Hip Joint?

Which ligament primarily stabilizes the lateral surface of the elbow joint?

Which joint structure enhances glenohumeral joint stability?

Which of the following best describes a characteristic of the knee joint?

Which ligaments are tightest when the knee is in extension?