W9 - Superficial EXTENSOR muscles Of The Wrist

Question 1

Name the six muscles that make up the superficial posterior compartment for wrist extension

Answer 1

Brachioradialis
Extensor carpi radialis longus
Extension carpi radiali brevis
Extensor carpi ulnaris
Extensor digitorum
Extensor digit minimi

Question 2

Name the proximal and distal attachment site for the brachioradialis muscle

Answer 2

Proximal
Proximal part of a lateral Supraepicondylar ridge of humerus and adjacent intermuscular septum

Distal
Lateral surface of distal end of the radius

Question 3

What nerve supplies the? Brachioradialis muscle.

Answer 3

Radial nerve C5 to 6

Question 4

What action is?Brachioradialis muscle responsible for.

Answer 4

Accessory flexor of the elbow joint on forearm is midpronated
Returns for Rome to mid range from full supination / pronation

Question 5

Name the proximal and distal attachment sites for the extensor carpi radialis longus muscle

Answer 5

Proximal
Lateral Supracondylar ridge of the humorous

Distal
Dorsal surface of the base of metacarpal two

Question 6

What nerve supply the extensor carpi radialis longus muscle

Answer 6

Radial nerve C6-7

Question 7

What actions is the extensor carpi radialis longus muscle responsible for

Answer 7

Extension of the wrist
Radial deviation

Question 8

Name the proximal and distal attachment sites for the extensor carpi radialis brevis muscle

Answer 8

Proximal
Lateral epicondyle of the humorous

Distal
Dorsal surface of base of metacarpal two and three

Question 9

What nerve supplies the extensor carpi radialis brevis muscle

Answer 9

Posterior interosseous nerve C7 - 8

Question 10

What action is the extensor carpi radialis brevis muscle responsible for

Answer 10

Extension of the wrist
Radial deviation of the wrist

Question 11

Name the proximal and distal attachment sites for the extensor carpi ulnaris muscle

Answer 11

Proximal
Lateral economy of this humorous and shared aponeurosis of the posterior border of the ulna

Distal
Tubercle on the medial side of base of metacarpal five

Question 12

What nerve supply the extensor carpi ulnaris muscle

Answer 12

Posterior interosseous nerve C7-8

Question 13

What action is the extensor carpi ulnaris responsible for

Answer 13

Extension and ulnar deviation of the hand at the wrist joint

Question 14

Name the proximal distal attachment sites for the extensive digitorum muscle

Answer 14

Proximal
Lateral epicondyle of the humorous

Distal
Base of middle and distal phalanges of each finger

Question 15

Name the nerve that supplies the extensive digitorum muscle

Answer 15

Posterior interosseous nerve C7-8

Question 16

What action is the extensive digitorum muscle responsible for?

Answer 16

Extension of the MCP joint and assistance extension of the IP joint

Question 17

Name the proximal distal attachment sites for the extensor digit minimi muscle

Answer 17

Proximal
Lateral epicondyle of the humorous

Distal
Dorsal digit expansion of digit five

Question 18

Name the nerve that supplies the extensor digit minimi muscle

Answer 18

Posterior interosseous nerve C7-8

Question 19

What action is the extensor digit minimi muscle responsible for

Answer 19

Extension at the MCP joint of the little finger and assists extension at the IP joint of the little finger