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The triceps brachii muscle consists of a long, medial and lateral head, that originate from their respective attachments on the humerus and scapula, and insert via a common tendon on the ulna. The main function of triceps brachii is extension of the forearm at the elbow joint .
The triceps brachii is a large, thick muscle on the dorsal part of the upper arm. It often appears as the shape of a horseshoe on the posterior aspect of the arm. The main function of the triceps is the extension of the elbow joint.
The triceps, or triceps brachii, is the large muscle found at the back of the arm. As are other muscles of the arms and legs, the triceps muscle is a voluntary muscle, meaning it's a muscle you choose to move. Triceps are made up of skeletal muscle fibers that contract under conscious control.
The primary function of the triceps brachii is the extension of the forearm at the elbow joint. When the triceps contract, the elbow straightens, and the forearm extends. Similarly, when the triceps extend, the biceps contract to fold the arm at the elbow.
Function: Extension of the arm at the elbow. Innervation: Radial nerve. A tap on the triceps tendon tests spinal segment C7. Note: In some individuals, the long head of the triceps brachii is innervated by the axillary nerve.
Function: Extension of the arm at the elbow. Blood Supply: Deep bracial (profunda brachii) artery; Innervation: Radial nerve
Function. The triceps is an extensor muscle of the elbow joint and an antagonist of the biceps and brachialis muscles. It can also fixate the elbow joint when the forearm and hand are used for fine movements, e.g., when writing.
The triceps brachii is a major muscle of the upper arm in the human body. The triceps run along the humerus (the main bone of the upper arm) between the shoulder and the elbow.
132. 8.7K views 4 years ago Anatomy and Physiology 1 & 2. In this video, Dr Matt explains everything you need to know about the triceps brachii muscle, including attachments, nerve...
The triceps brachii muscle is the only muscle in the posterior compartment of the arm. It consists of three heads: lateral, medial and long head and serves primarily to extend the forearm. Learn more about the anatomy of the triceps brachii using the narrated video tutorial and interactive 3D anatomy model. Origin.