Long head of triceps brachii
Caput longum musculi tricipitis brachii
- Related terms: Long head; Triceps brachii: Long head; Triceps brachii : Long head; Triceps brachii - Long head
Definition
Origin: Long head: scapula
Insertion: Olecranon process of ulna
Artery: Profunda brachii
Nerve: Radial nerve
Action: Extends forearm, caput longum adducts shoulder
Antagonist: Biceps brachii muscle
Description:
The long head arises by a flattened tendon from the infraglenoid tuberosity of the scapula, being blended at its upper part with the capsule of the shoulder-joint; the muscular fibers pass downward between the two other heads of the muscle, and join with them in the tendon of insertion.
References
This definition incorporates text from a public domain edition of Gray's Anatomy (20th U.S. edition of Gray's Anatomy of the Human Body, published in 1918 – from http://www.bartleby.com/107/).
