Posterior Arm Compartment

Question 1

Triceps brachii - O & I

Answer 1

O: Long. H: infraglenoid tubercle
Lat H: proximal 1/2 of posterior shaft of humerus
Med. H: distal 1/2 of posterior shaft of humerus
I: Olecranon process of ulna

Question 2

Triceps - F & N

Answer 2

F: 1) Ext. of forearm @ elbow J
2) Ext. of arm @ shoulder J (long head)
3) horizontal ABD. Of arm @ shoulder J (Long head)
N: Radial nerve