Unit 2 - Upper Limb: Posterior Compartment of Forearm, Radialis Muscles (Ex. II) Flashcards
1
Q
extensor carpi radialis longus
A
O: L supracondylar ridge of distal humerus; L intermuscular septum
I: base of 2nd metacarpal
Inn: radial N (C6, C7)
A: weak elbow flexion; extension and abduction (R deviation) of wrist
2
Q
extensor carpi radialis brevis
A
O: L epicondyle of humerus
I: base of 3rd metacarpal
Inn: radial N (C7, C8)
A: weak elbow flexion; extension and abduction (R deviation) of wrist
3
Q
brachioradialis
A
O: distal humerus (distal surface); L intermuscular septum
I: styloid process of radius
Inn: radial N (C5, C6)
A: elbow flexion; forearm semipronation
