Triceps Brachii

Origin:

LONG HEAD from infraglenoid tuberosity of the Scapula

LATERAL HEAD from posterior and lateral surface of the Humerus

MEDIAL HEAD from lower posterior surface of the Humerus

Insertion: Upper posterior surface of the olecranon and the deep forearm fascia

Function: Extends the elbow along with other muscles which extend the elbow If the arm is abducted, the long head adducts the shoulder along with other Muscles which produce shoulder Adduction

Nerve: Radial Nerve

Reflex:
C7
Artery: Muscular branches of Profunda Brachii

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Links to this page: Alphabetical Muscle Index | Anconeus | Brachial Plexus Lower Trunk Posterior Division | Brachial Plexus Lower Trunk | Brachial Plexus Middle Trunk | Brachial Plexus Posterior Cord | Brachial Plexus Upper Trunk Posterior Division | C7 Root Home Page | C7 Root Shared Muscle Innervation | C7, C8 roots | C8 Root Shared Muscle Innervation | Elbow muscles | Humerus Shaft | Muscles Innervated directly by the Radial Nerve | Muscles which extend the elbow | Muscles which produce shoulder Adduction | Muscular branches of Profunda Brachii artery | Nerve route to Triceps Brachii | Reflex Testing | Scapula | Triceps Brachii Tendons | Ulna |