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Anatomy of Forearm and Hand Muscles Quiz

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Which muscle is responsible for flexing the forearm?

Brachioradialis

Explanation

Flexes the forearm at the elbow joint.

Which muscle is primarily responsible for extending the fingers?

Extensor digitorum

Explanation

Extends the fingers at the metacarpophalangeal and interphalangeal joints.

Which muscle is the primary flexor of the elbow joint?

Biceps brachii

Explanation

Flexes the forearm at the elbow joint.

Which muscle is responsible for supinating the forearm?

Supinator

Explanation

Supinates the forearm by rotating the radius and the hand laterally.

Which muscle is involved in flexion and abduction of the wrist joint?

Flexor carpi radialis

Explanation

Flexes and abducts the wrist joint.

Which muscle forms the lateral border of the cubital fossa?

Brachioradialis

Explanation

Forms the lateral boundary of the cubital fossa.

Which muscle pronates the forearm?

Pronator quadratus

Explanation

Pronates the forearm by rotating the radius over the ulna.

Which muscle is involved in the abduction of the thumb?

Abductor pollicis longus

Explanation

Abducts the thumb away from the palm.

Which muscle is involved in the extension of the thumb?

Extensor pollicis longus

Explanation

Extends the thumb at the metacarpophalangeal and carpometacarpal joints.

#10

Which muscle acts as the primary extensor of the wrist joint?

Extensor carpi ulnaris

Explanation

Extends and adducts the wrist joint.

#11

Which muscle is responsible for flexing the distal phalanx of the thumb?

Flexor pollicis longus

Explanation

Flexes the distal phalanx of the thumb.

#12

Which muscle assists in flexing the fingers and wrist?

Flexor digitorum superficialis

Explanation

Flexes the fingers and assists in flexing the wrist.

#13

Which muscle is responsible for adducting the fingers?

Palmar interossei

Explanation

Adducts the fingers towards the midline of the hand.

#14

Which muscle is responsible for opposition of the thumb?

Opponens pollicis

Explanation

Opposes the thumb to the other fingers.

#15

Which muscle is responsible for extending the thumb?

Extensor pollicis longus

Explanation

Extends the thumb at the metacarpophalangeal and carpometacarpal joints.

#16

Which muscle is involved in adduction and flexion of the wrist?

Flexor carpi ulnaris

Explanation

Adducts and flexes the wrist.

#17

Which muscle is responsible for flexing the proximal phalanx of the thumb?

Flexor pollicis brevis

Explanation

Flexes the proximal phalanx of the thumb.

Anatomy of Forearm and Hand Muscles Quiz

Which muscle is responsible for flexing the forearm?

Which muscle is primarily responsible for extending the fingers?

Which muscle is the primary flexor of the elbow joint?

Which muscle is responsible for supinating the forearm?

Which muscle is involved in flexion and abduction of the wrist joint?

Which muscle forms the lateral border of the cubital fossa?

Which muscle pronates the forearm?

Which muscle is involved in the abduction of the thumb?

Which muscle is involved in the extension of the thumb?

Which muscle acts as the primary extensor of the wrist joint?

Which muscle is responsible for flexing the distal phalanx of the thumb?

Which muscle assists in flexing the fingers and wrist?

Which muscle is responsible for adducting the fingers?

Which muscle is responsible for opposition of the thumb?

Which muscle is responsible for extending the thumb?

Which muscle is involved in adduction and flexion of the wrist?

Which muscle is responsible for flexing the proximal phalanx of the thumb?

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