Posterior Arm

There is only one muscle in the posterior compartment of the arm…

There is only one muscle in the posterior compartment of the arm…

Hoorah !!!

Elbow Full Flexion

The Triceps

TricepsOrigin Long head: infraglenoid

tubercle of scapula; Lateral head: posterior surface of humerus, superior to radial grooveMedial head: posterior surface of humerus, inferior to radial groove

Insertion Olecranon process of ulna, fascia of forearm

Action Extends elbow jointNerve Supply Radial nerve (C6, C7 and C8) Blood Supply Branches of deep brachial

artery - Profunda Brachii

Posterior Arm