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Anatomy and Function of Upper Limb Muscles Quiz

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Which muscle is responsible for flexing the forearm?

Biceps brachii

Explanation

Biceps brachii flexes the forearm by contracting.

Which muscle is primarily responsible for abduction of the arm?

Deltoid

Explanation

Deltoid is the primary muscle responsible for arm abduction.

Which muscle is responsible for extension of the elbow joint?

Triceps brachii

Explanation

Triceps brachii is responsible for extending the elbow joint.

Which muscle is the primary flexor of the wrist?

Flexor carpi radialis

Explanation

Flexor carpi radialis is the primary muscle for wrist flexion.

Which muscle is primarily responsible for adduction of the arm?

Teres major

Explanation

Teres major is primarily responsible for arm adduction.

Which muscle is involved in both extension and adduction of the arm?

Teres major

Explanation

Teres major is involved in both arm extension and adduction.

Which muscle is responsible for shoulder abduction beyond the initial 15 degrees?

Supraspinatus

Explanation

Supraspinatus is responsible for shoulder abduction beyond the initial 15 degrees.

Which muscle is involved in wrist extension?

Extensor carpi radialis longus

Explanation

Extensor carpi radialis longus is involved in wrist extension.

Which muscle is involved in both flexion and supination of the forearm?

Brachialis

Explanation

Brachialis is involved in both flexion and supination of the forearm.

#10

Which muscle is responsible for adduction and medial rotation of the arm?

Pectoralis major

Explanation

Pectoralis major performs adduction and medial rotation of the arm.

#11

Which muscle is responsible for opposition of the thumb?

Opponens pollicis

Explanation

Opponens pollicis is responsible for opposing the thumb.

#12

Which muscle is involved in pronation of the forearm?

Pronator quadratus

Explanation

Pronator quadratus is involved in forearm pronation.

#13

Which muscle is responsible for extension of the shoulder joint?

Deltoid

Explanation

Deltoid is responsible for shoulder joint extension.

#14

Which muscle is primarily responsible for adduction of the thumb?

Adductor pollicis

Explanation

Adductor pollicis is primarily responsible for thumb adduction.

#15

Which muscle forms the posterior wall of the axilla?

Latissimus dorsi

Explanation

Latissimus dorsi forms the posterior wall of the axilla.

#16

Which muscle is responsible for extending and abducting the thumb?

Extensor pollicis longus

Explanation

Extensor pollicis longus is responsible for extending and abducting the thumb.

#17

Which muscle assists in extension and adduction of the arm?

Teres major

Explanation

Teres major assists in both extension and adduction of the arm.

#18

Which muscle is responsible for abduction of the thumb?

Abductor pollicis longus

Explanation

Abductor pollicis longus is responsible for thumb abduction.

#19

Which muscle is responsible for the majority of forearm supination?

Supinator

Explanation

Supinator is responsible for the majority of forearm supination.

#20

Which muscle is responsible for flexion of the shoulder joint when the arm is medially rotated?

Pectoralis major

Explanation

Pectoralis major is responsible for flexion of the shoulder joint when the arm is medially rotated.

Anatomy and Function of Upper Limb Muscles Quiz

Which muscle is responsible for flexing the forearm?

Which muscle is primarily responsible for abduction of the arm?

Which muscle is responsible for extension of the elbow joint?

Which muscle is the primary flexor of the wrist?

Which muscle is primarily responsible for adduction of the arm?

Which muscle is involved in both extension and adduction of the arm?

Which muscle is responsible for shoulder abduction beyond the initial 15 degrees?

Which muscle is involved in wrist extension?

Which muscle is involved in both flexion and supination of the forearm?

Which muscle is responsible for adduction and medial rotation of the arm?

Which muscle is responsible for opposition of the thumb?

Which muscle is involved in pronation of the forearm?

Which muscle is responsible for extension of the shoulder joint?

Which muscle is primarily responsible for adduction of the thumb?

Which muscle forms the posterior wall of the axilla?

Which muscle is responsible for extending and abducting the thumb?

Which muscle assists in extension and adduction of the arm?

Which muscle is responsible for abduction of the thumb?

Which muscle is responsible for the majority of forearm supination?

Which muscle is responsible for flexion of the shoulder joint when the arm is medially rotated?

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