Extensor Muscles Of Forearm(superficial layer) Flashcards Preview

Anatomy > Extensor Muscles Of Forearm(superficial layer) > Flashcards

Flashcards in Extensor Muscles Of Forearm(superficial layer) Deck (25)
Loading flashcards...
0

The extensor tendons are held in place in the wrist region by the _____ ______, which prevents...

Extensor retinaculum
Which prevents bowstringing of the tendons when the hand is extended at the wrist joint

1

Brachioradialis p.a.

Proximal 2/3 of lateral supra-epicondylar ridge of humerus

2

Brachioradialis d.a.

Lateral surface of distal end of radius( proximal to styloid process)

3

Brachioradialis Innervation

Radial nerve
C5c6c7

4

Brachioradialis action

Relatively weak flexion

5

Extensor carpi radialis longus p.a.

Lateral supra-epicondylar ridge of humerus

6

Extensor carpi radialis longus d.a.

Dorsal aspect of base of 2nd metacarpal

7

Extensor carpi radialis longus innervation

Radial nerve
C6c7

8

Extensor carpi radialis longus action

Extend and abduct hand at wrist joint

9

Extensor carpi radialis brevis p.a.

Lateral epicondyle of humerus(ceo)

10

Extensor carpi radialis brevis d.a.

Dorsal aspect of base of 3rd metacarpal

11

Extensor carpi radialis brevis innervation

Deep branch of radial nerve
C7c8

12

Extensor carpi radialis brevis action

Extend and abduct hand at wrist joint

13

Extensor digitorum p.a

LEH- CEO

14

Extensor digitorum d.a.

Extensor expansions of medial four fingers

15

Extensor digitorum innervation

Posterior interosseous nerve
C7c8
Cont. of deep branch of radial nerve

16

Extensor digitorum action

Extends medial four fingers

17

Extensor digiti minimi p.a.

L.e.h. - CEO

18

Extensor digiti minimi d.a.

Extensor expansion of 5th finger

19

Extensor digiti minimi innervation

Posterior interosseous nerve
C7c8
Cont. of deep branch of radial nerve

20

Extensor digiti minimi action

Extends 5th finger

21

Extensor carpi ulnaris p.a.

L.e.h.

22

Extensor carpi ulnaris d.a.

Dorsal aspect of base of 5th metatarsal

23

Extensor carpi ulnaris innervation

Posterior interosseous nerve
C7c8
Cont. of deep branch of radial nerve

24

Extensor carpi ulnaris action

Extends and adducts hand at wrist joint