MOINA Muscles of the Anterior Fascial Compartment of the Forearm

Question 1

humeral head of the pronator teres

Answer 1

origin: medial epicondyle of the humerus
insertion: lateral aspect of the shaft of the humerus

nerve: median nerve

pronation and flexion of the forearm

Question 2

ulnar head of the pronator teres

Answer 2

medial border of the coronoid process of the ulna

Question 3

flexor carpi radialis

Answer 3

origin: medial epicondyle of the humerus
insertion: bases of second and third metacarpal bones

nerve: median nerve

flexes and abducts of the hand at the wrist joint

Question 4

palmaris longus

Answer 4

origin: medial epicondyle of the humerus
insertion: flexor retinaculum and palmar aponeurosis

nerve: median nerve

flexes hand

Question 5

humeral head of flexor carpi ulnaris

Answer 5

origin: medial epicondyle of the humerus
insertion: pisiform bone, hook of the hammate, and base of fifth metacarpal bone

nerve: ulnar nerve

flexion and adduction of the hand at the wrist joint

Question 6

ulnar head of flexor carpi ulnaris

Answer 6

medial aspect of the olecranon process and posterior border of the ulna

Question 7

humeroulnar head of flexor digitorum superficialis

Answer 7

origin: medial epicondyle of the humerus; medial border of the coronoid process of the ulna
insertion: middle phalanx of medial four fingers

nerve: median nerve

flexes middle phalanx of fingers; assists in flexing proximal phalanx and hand

Question 8

radial head of flexor digitorum superficialis

Answer 8

oblique line of anterior surface of shaft of radius

Question 9

flexor pollicis longus

Answer 9

origin: anterior surface of shaft of radius
insertion: distal phalanx of thumb

nerve: anterior interosseous branch of median nerve

flexes distal phalanx of thumb

Question 10

flexor digitorum profundus

Answer 10

origin: anteromedial surface of shaft ulna
insertion: distal phalanx of medial four fingers

nerve: ulnar (medial half) and median (lateral half) nerves

flexes distal phalanx of fingers; assists in flexion of middle and proximal phalanx and wrist

Question 11

pronator quadratus

Answer 11

origin: anterior surface of shaft of ulna
insertion: anterior surface of shaft of radius

nerve: anterior interosseous branch of median nerve

pronates forearm