Muscles of the Posterior Forearm Muscle Table (superficial)

Question 1

Origin of all posterior forearm muscles?

Answer 1

Lateral epicondyle and supracondylar ridge of the humerus

Question 2

Brachioradialis insertion

Answer 2

styloid process of the radius

Question 3

Brachioradialis innervation

Answer 3

Radial n.

Question 4

Brachioradialis action

Answer 4

Flexion at the elbow joint

Question 5

Extensor Carpi Radialis Longus insertion

Answer 5

base of the 2nd metacarpal

Question 6

Extensor Carpi Radialis Longus innervation

Answer 6

radial n.

Question 7

Extensor Carpi Radialis Longus action

Answer 7

extension at the wrist joint

abduction at the wrist

Question 8

Extensor Carpi Radialis Brevis insertion

Answer 8

Base of 3rd metacarpal

Question 9

Extensor Carpi Radialis Brevis innervation

Answer 9

Deep radial n.

Question 10

Extensor Carpi Radialis Brevis action

Answer 10

extension at the wrist joint

abduction at the wrist

Question 11

Extensor digitorum insertion

Answer 11

middle and distal phalanges of digits 2-5 via extensor expansion

Question 12

Extensor digitorum innervation

Answer 12

posterior interosseous n.

Question 13

Extensor digitorum action

Answer 13

extension of the MP Joint of Digits 2-5

Question 14

Extensor digiti minimi insertion

Answer 14

extensor expansion

Question 15

Extensor digiti minimi innervation

Answer 15

posterior interosseous n.

Question 16

Extensor digiti minimi action

Answer 16

extension of the MP joint of digit 5

Question 17

Extensor carpi ulnaris insertion

Answer 17

Base of the 5th metacarpal

Question 18

Extensor carpi ulnaris innervation

Answer 18

Posterior Interosseous n.

Question 19

Extensor carpi ulnaris action

Answer 19

extension at the wrist joint adduction at the wrist