Arm

Question 1

Name the 3 mm extensor mm that act on the wrist

Answer 1

1. Extensor Carpi radialis brevis m
2. Extensor Carpi radialis longus m
3. Extensor Carpi ulnar brevis m

Question 2

Name the 3 extensor mm that act on the fingers

Answer 2

1. Extensor digitorum m
2. Extensor digiti minimi m
3. Extensor indicis m

Question 3

Name the 3 extensor mm that act on the thumb

Answer 3

1. Abductor pollicus longus m
2. Extensor pollicus brevis m
3. Extensor pollicus longus m

Question 4

Name the 2 additional mm included in the “extensor forearm category”

Answer 4

1. Brachiradialis m

2. Supinator m

Question 5

Ulna bone

Answer 5

Bone of the forearm, olecranon makes it longer than radius b

Art: humerus, radius

Question 6

Interosseous membrane

Answer 6

Strong membrane which ties ulna and radius together

Question 7

Name the bones of the carpals

Answer 7

(proximal row) Scaphoid, lunate, triquetrum, pisiform bodies bones
(distal row): trapezium, trapazoid, capitate, hamate bones

Question 8

Biceps brachii m

Answer 8

Flexor m of arm
O: scapula, coracoid process/supra glenoid fossa
I: tuberocity of radius
Inn: musculocutaneous n