Muscles Part 3

Question 1

Flexor digitorum superficialis PA

Answer 1

1. Humeroulnar head: medial epicondyle via common flexor tendon and the coronoid process of the ulna
2. Radial head: upper portion of radius, anterior side

Question 2

Flexor digitorum superficialis DA

Answer 2

Bases of the middle phalanges of the 4 fingers

Question 3

Flexor digitorum superficialis n

Answer 3

median n

Question 4

Flexor digitorum profundus PA

Answer 4

superior 2/3 of ulna, anterior and medial sides

Question 5

Flexor digitorum profundus DA

Answer 5

bases of distal phalanges of the 4 fingers

Question 6

Flexor digitorum profundus N

Answer 6

Radial 1/2 of muscle: anterior interosseus n

Ulnar 1/2: ulnar n

Question 7

Extensor digitorum communis PA

Answer 7

lateral epicondyle via common extensor tendon

Question 8

Extensor digitorum communis DA

Answer 8

Dorsal expansion of fingers
Central band - base of middle phalanx
Lateral bands - base of distal phalanx

Question 9

Extensor digitorum communis n

Answer 9

deep branch of radial n

Question 10

Extensor indices PA

Answer 10

distal portion of ulna and interosseus membrane, posterior side

Question 11

Extensor indices DA

Answer 11

Joins tendon from extensor digitorum at dorsal expansion, index finger

Question 12

Extensor indices n

Answer 12

posterior interosseus n