Forearm - anterior compartment

Question 1

Anterior/flexor/pronator compartment of forearm -

superficial

Answer 1

pronator teres
flexor carpi radialis
palmaris longus
flexor carpi ulnaris

Question 2

Anterior/flexor/pronator compartment of forearm -

intermediate

Answer 2

flexor digitorum superficialis

Question 3

Anterior/flexor/pronator compartment of forearm -

deep

Answer 3

flexor digitorum profundus
flexor pollicis longus
pronator quadratus

Question 4

Attachments of pronator teres

Answer 4

Proximal: humeral head @ medial epicondyle of humerus / ulnar head @ coronoid process
Distal: lateral surface of radius

Question 5

Actions of pronator teres

Answer 5

pronates forearm and flexes it at elbow

Question 6

Innervation of pronator teres

Answer 6

median nerve (C6, C7)

Question 7

Attachments of flexor carpi radialis

Answer 7

Proximal: medial epicondyle of humerus
Distal: base of 2nd metacarpal

Question 8

Actions of flexor carpi radialis

Answer 8

weakly flexes and abducts hand at wrist

Question 9

Innervation of flexor carpi radialis

Answer 9

median nerve (C6, C7)

Question 10

Attachments of palmaris longus

Answer 10

Proximal: medial epicondyle of humerus
Distal: distal half of flexor retinaculum of hand and palmar aponeurosis

Question 11

Actions of palmaris longus

Answer 11

flexes hand at wrist, tenses palmar aponeurosis

Question 12

Innervation of palmaris longus

Answer 12

median nerve (C7, C8)

Question 13

Attachments of flexor carpi ulnaris

Answer 13

Proximal: medial epicondyle of humerus, olecranon, and posterior border of ulna
Distal: pisiform bone, hook of hamate, 5th metacarpal

Question 14

Actions of flexor carpi ulnaris

Answer 14

flexes and adducts hand at wrist

Question 15

Innervation of flexor carpi ulnaris

Answer 15

ulnar nerve (C8)

Question 16

Attachments of flexor digitorum superficialis

Answer 16

Proximal: medial epicondyle of humerus and superior half of anterior radius
Distal: middle phalanges of 2nd-5th digits

Question 17

Actions of flexor digitorum superficialis

Answer 17

flexes middle and proximal phalanges

Question 18

Innervation of flexor digitorum superficialis

Answer 18

median nerve (C7, C8, T1)

Question 19

Attachments of flexor digitorum profundus

Answer 19

Proximal: proximal 3/4 of medial and anterior ulna and interosseous membrane
Distal: radial side @ base of 2nd-3rd digits / ulnar side @ base of 4th-5th digits

Question 20

Actions of flexor digitorum profundus

Answer 20

flexes distal 2nd-5th phalanges

Question 21

Innervation of flexor digitorum profundus

Answer 21

radial side: anterior interosseous nerve (median, C8, T1)

ulnar side: ulnar nerve (C8-T1)

Question 22

Attachments of flexor pollicis longus

Answer 22

Proximal: anterior radius and interosseous membrane
Distal: base of distal phalanx of thumb (pollux)

Question 23

Actions of flexor pollicis longus

Answer 23

flexes thumb

Question 24

Innervation of flexor pollicis longus

Answer 24

anterior interosseous nerve (C8, T1)

Question 25

Attachments of pronator quadratus

Answer 25

Proximal: distal fourth of anterior ulna
Distal: distal fourth of anterior radius

Question 26

Actions of pronator quadratus

Answer 26

pronates forearm, binds ulna and radius

Question 27

Innervation of pronator quadratus

Answer 27

anterior interosseous nerve (C8, T1)

Question 28

Origin of flexor mass

Answer 28

medial epicondyle of humerus