Muscles of Anterior Compartment of Forearm

Question 0

Pronator Teres (Superficial Layer) insertion?

Answer 0

Middle convexity of lateral surface of radius

Question 1

Pronator Teres (Superficial Layer) Origin?

Answer 1

Ulnar head: coronoid process of ulna

Humeral head : medial epicondyle of humerus

Question 2

Pronator Teres (Superficial Layer) innervation?

Answer 2

Median nerve (C6, C7)

Question 3

Pronator Teres (Superficial Layer) Action?

Answer 3

Pronates and flexes forearm

Question 4

Flexor Carpi Radialis origin?

Answer 4

Medial epicondyle of humerus

Question 5

Flexor Carpi Radialis insertion?

Answer 5

Base of 2nd (3rd) metacarpal

Question 6

Flexor Carpi Radialis innervation?

Answer 6

Median nerve (C6, C7)

Question 7

Flexor Carpi Radialis action?

Answer 7

Flexes and abducts hand at wrist

Question 8

Palmaris Longus origin?

Answer 8

Medial epicondyle of humerus

Question 9

Palmaris Longus insertion?

Answer 9

Distal half of flexor retinaculum, palmar aponeurosis

Question 10

Palmaris Longus innervation?

Answer 10

Median nerve (C7, C8)

Question 11

Palmaris Longus action?

Answer 11

Flexes hand (at wrist) and tenses palmar aponeurosis

Question 12

Flexor carpi ulnaris - Humeral head, ulnar head, Origin?

Answer 12

Olecranon and posterior border of ulna (via aponeurosis)

Question 13

Flexor carpii ulnaris (humeral head and ulnar head) insertion?

Answer 13

Pisiform, hook of hamate, 5th metacarpal

Question 14

Flexor carpii ulnaris (humeral head and ulnar head) innervation?

Answer 14

Ulnar nerve (C7, C8)

Question 15

Flexor carpii ulnaris (humeral head and ulnar head) action?

Answer 15

flexes and adducts hand at wrist

Question 16

Flexor digitorum superficialis (Intermediate) origin?

Answer 16

Humero-ulnar head : medial epicondyle of humerus and coronoid process of ulna
Radial head: oblique line of the radius

Question 17

Flexor digitorum superficialis insertion?

Answer 17

Shafts (bodies) of middle phalanges of medial four digits

Question 18

Flexor digitorum superficialis innervation?

Answer 18

Median nerve (C7, C8, T1)

Question 19

Flexor digitorum superficialis actions?

Answer 19

flexes wrist joint, flexes proximal interphalangeal joints of middle four digits; acting more strongly; it also flexes proximal phalanges at metacarpophalangeal joints

Question 20

Flexor digitorum profundus (deep) origin?

Answer 20

proximal 3/4 of medial and anterior surfaces of ulna and interosseous membrane

Question 21

Flexor digitorum profundus insertion?

Answer 21

bases of distal phalanges of 2nd, 3rd, 4th, and 5th digits

Question 22

Flexor digitorum profundus innervation?

Answer 22

Lateral part (digits 2 and 3) - median nerve (C8, T1) - anterior interosseous branch
Medial part (digits 4 and 5) - Ulnar nerve (C8, T1)

Question 23

Flexor digitorum profundus action?

Answer 23

Flexes wrist joint; flexes distal interphalangeal joints of digits 2, 3, 4, 5; assists with wrist flexion.

Question 24

Flexor pollicis longus origin?

Answer 24

Anterior surface of radius and adjacent interosseous membrane

Question 25

Flexor pollicis longus insertion?

Answer 25

Base of distal phalanx of thumb

Question 26

Flexor pollicis longus innervation?

Answer 26

Anterior interosseous nerve, from median nerve (C8, T1)

Question 27

Flexor pollicis longus action?

Answer 27

Flexes wrist, flexes metacarpophalangeal and interphalangeal joints of thumb

Question 28

Pronator quadratus origin?

Answer 28

Distal quarter of anterior surface of ulna

Question 29

Pronator quadratus insertion?

Answer 29

distal quarter of anterior surface of radius

Question 30

Pronator quadratus innervation?

Answer 30

Anterior interosseous nerve from median nerve (C8, T1)

Question 31

Pronator quadratus action?

Answer 31

pronates forearm, deep fibers bind radius and ulna together