Muscles / Triceps
Triceps brachii
- Triceps
- Arm & elbow
- Superficial layer
Also called triceps.
Anatomy
- Origin
- Long head: infraglenoid tubercle of the scapula; lateral head: posterior humerus above the radial groove; medial head: posterior humerus below the radial groove
- Insertion
- Proximal end of the olecranon of the ulna and fascia of the forearm
- Nerve
- Radial nerve (C6-C8)
Actions
- Extends the elbow
- Long head extends and adducts the arm and stabilises the shoulder
Exercises that train it most
Also trained by
Parts
Notes
- Triceps reflex tests mainly C7.
References (4)
- Standring S, ed. Elsevier. Gray's Anatomy: The Anatomical Basis of Clinical Practice. 42nd ed.
- Dalley AF, Agur AMR. Wolters Kluwer. Moore's Clinically Oriented Anatomy. 9th ed.
- Neumann DA. Elsevier. Kinesiology of the Musculoskeletal System: Foundations for Rehabilitation. 3rd ed.
- Betts JG, Young KA, Wise JA, et al. OpenStax (free, openly licensed textbook). Anatomy and Physiology 2e