Posterior Compartment Superficial

Question 1

Extensor carpi radialis longus (origin)

Answer 1

Lateral supracondylar ridge and epicondyle of humerus (common extensor tendon)

Question 2

Extensor carpi radialis longus (insertion)

Answer 2

base of 2nd metacarpal

Question 3

Extensor carpi radialis longus (action)

Answer 3

extension and radial deviation of hand

Question 4

Extensor carpi radialis longus (innervation)

Answer 4

radial nerve

Question 5

Extensor carpi radialis brevis (origin)

Answer 5

lateral epicondyle of humerus (common extensor tendon)

Question 6

Extensor carpi radialis brevis (insertion)

Answer 6

base of 3rd metacarpal

Question 7

Extensor carpi radialis brevis (action)

Answer 7

extend hand

Question 8

Extensor carpi radialis brevis (innervation)

Answer 8

radial nerve

Question 9

Extensor digitorum communis (origin)

Answer 9

lateral epicondyle of humerus

Question 10

Extensor digitorum communis (insertion)

Answer 10

middle and distal phalanges of each of 4 fingers

Question 11

Extensor digitorum communis (action)

Answer 11

extension of each of 4 fingers

Question 12

Extensor digitorum communis (innervation)

Answer 12

radial nerve

Question 13

Extensor digiti minimi (origin)

Answer 13

Lateral epicondyle of humerus (common extensor tendon)

Question 14

Extensor digiti minimi (insertion)

Answer 14

middle and distal phalanges of little finger

Question 15

Extensor digiti minimi (action)

Answer 15

Extends the 5th digit

Question 16

Extensor digiti minimi (innervation)

Answer 16

radial nerve

Question 17

Extensor carpi ulnaris (origin)

Answer 17

lateral epicondyle of humerus (common extensor tendon)

Question 18

Extensor carpi ulnaris (insertion)

Answer 18

base fo 5th metacarpal

Question 19

Extensor carpi ulnaris (action)

Answer 19

extension and ulnar deviation of wrist

Question 20

Extensor carpi ulnaris (innervation)

Answer 20

radial nerve