Anterior Forearm Muscles

Question 1

What is the MA of the Pronator Teres?

Answer 1

Pronation of the forearm (radioulnar joint)

Assists in elbow flexion (humeroulnar joint)

Question 2

What is the PA of the Pronator Teres?

Answer 2

Medial epicondyle of humerus (common flexor origin) and coronoid process of ulna

Question 3

What is the DA of the Pronator Teres?

Answer 3

Lateral surface of radius

Question 4

What is the N for the Pronator Teres?

Answer 4

Median nerve (C6 & C7)

Question 5

What is the MA of the Flexor Carpi Radialis (FCR)?

Answer 5

Flexion of the wrist and radial deviation (abduction of the hand at the wrist)

Question 6

What is the PA of the Flexor Carpi Radialis (FCR)?

Answer 6

Medial epicondyle of humerus (common flexor origin)

Question 7

What is the DA of the Flexor Carpi Radialis (FCR)?

Answer 7

Bases of 2nd and 3rd metacarpals

Question 8

What is the N for the Flexor Carpi Radialis (FCR)?

Answer 8

Median nerve (C6 & C7)

Question 9

What is the MA of the Flexor Carpi Ulnaris (FCU)?

Answer 9

Flexion of the wrist and ulnar deviation (adduction of the hand at the wrist)

Question 10

What is the PA of the Flexor Carpi Ulnaris (FCU)?

Answer 10

Humeral Head: medial epicondyle of humerus (common flexor origin)

Ulnar Head: posterior ulna

Question 11

What is the DA of the Flexor Carpi Ulnaris (FCU)?

Answer 11

Pisiform, hook of hamate, and base of 5th metacarpal

Question 12

What is the N for the Flexor Carpi Ulnaris (FCU)?

Answer 12

Ulnar nerve (C7 & C8)

Question 13

What is the MA of the Flexor Digitorum Superficialis (FDS)?

Answer 13

Flexion of the medial 4 digits at proximal interphalangeal joints

Acting more strongly, it also does flexion of the proximal phalanges at metacarpophalangeal joints

Question 14

What is the PA of the Flexor Digitorum Superficialis (FDS)?

Answer 14

Humero-ulnar Head: medial epicondyle (common flexor origin) & coronoid process of ulna

Radial Head: anterior radius

Question 15

What is the DA of the Flexor Digitorum Superficialis (FDS)?

Answer 15

Shafts of middle phalanges of medial 4 digits

Question 16

What is the N for the Flexor Digitorum Superficialis (FDS)?

Answer 16

Median nerve (C7, C8, & T1)

Question 17

What is the MA of the Flexor Digitorum Profundus (FDP)?

Answer 17

Flexion of the medial 4 fingers at the metacarpophalangeal, proximal interphalangeal, and distal interphalangeal joints

Assists in flexion of the wrist (radiocarpal joint)

Question 18

What is the PA of the Flexor Digitorum Profundus (FDP)?

Answer 18

Proximal ulna and interosseous membrane

Question 19

What is the DA of the Flexor Digitorum Profundus (FDP)?

Answer 19

Lateral Part: bases of distal phalanges of digits 2-3

Medial Part: bases of distal phalanges of digits 4-5

Question 20

What is the N for the Flexor Digitorum Profundus (FDP)?

Answer 20

2-3 digits: Median nerve (AIN) (C8 & T1)

4-5 digits: Ulnar nerve (C8 & T1)

Question 21

What is the MA of the Flexor Pollicis Longus (FPL)?

Answer 21

Flexion of the phalanges of the 1st digit (thumb)

Question 22

What is the PA of the Flexor Pollicis Longus (FPL)?

Answer 22

Anterior radius and adjacent interosseous membrane

Question 23

What is the DA of the Flexor Pollicis Longus (FPL)?

Answer 23

Base of distal phalanx of thumb

Question 24

What is the N for the Flexor Pollicis Longus (FPL)?

Answer 24

Median (AIN) nerve (C8 & T1)

Question 25

What is the MA of the Pronator Quadratus?

Answer 25

Pronation of the forearm

Deep fibers bind radius and ulna together

Question 26

What is the PA of the Pronator Quadratus?

Answer 26

Distal ulna

Question 27

What is the DA of the Pronator Quadratus?

Answer 27

Distal radius

Question 28

What is the N for the Pronator Quadratus?

Answer 28

Median (AIN) nerve (C8 & T1)