Anterior Compartment of Arm

Question 1

Coracobrachialis

Answer 1

O:Coracoid process
I: mid-shaft of humerus, medial surface
A: shoulder flexion/shoulder adduction
I: musculocutaneous

Question 2

biceps brachii

Answer 2

O: long head: supraglenoid tubercle
short head: coracoid process
I: radial tuberosity
A: elbow flexion/supination/shoulder flexion
I: musculocutaneous

Question 3

brachialis

Answer 3

O: anterior humerus, distal half
I: ulnar tuberosity
A: elbow flexion
I: musculocutaneous and radial