The origin of the long head of the triceps brachii is on the

The origin of the long head of the triceps brachii is on the

a.posterior shaft of the humerus

b. olecranon process of the ulna.

c. infraglenoid tubercle of the scapula.

d. the anterior shaft of the humerus.

Solution

C.infraglenoid tubercle of scapula.

Note- the muscle tricep brachii has

Medial head at radial sulcus and lateral head at radial sulcus whereas insertion into olecranon process of ulna.

Long arm arises of infraglenoid tubercle of scapula it extend distally to teres minor and posteriorly to teres major.