Lateral head of triceps brachii at a glance
- What it is
- The lateral head of the triceps.
- Location
- Origin: posterior humerus above the radial groove. Insertion: olecranon of the ulna via the common triceps tendon.
- Function
- Extends the forearm at the elbow.
- Body system
- Muscular · paired (left and right)
- FMA ID
- FMA37697 (Foundational Model of Anatomy)
Key facts
- Innervation: radial nerve (C6–C8)
- Blood supply: profunda brachii artery
Structures next to the lateral head of triceps brachii
The nearest named structures in the 3D model, measured from the centre of each part:
- Long head of triceps brachii · muscular
- Medial head of triceps brachii · muscular
- Deep brachial artery · cardiovascular
- Humerus · skeletal
- Brachial artery · cardiovascular
- Long head of biceps brachii · muscular
- Brachialis · muscular
- Short head of biceps brachii · muscular
- Middle collateral branch of deep brachial artery · cardiovascular
- Superior ulnar collateral artery · cardiovascular
References
- Foundational Model of Anatomy: Lateral head of triceps brachii (FMA37697). EMBL-EBI Ontology Lookup Service.
- OpenStax. Anatomy and Physiology 2e, §11.2 Naming Skeletal Muscles. Rice University, 2022.
- Mitsuhashi N. et al. (2009). BodyParts3D: 3D structure database for anatomical concepts. Nucleic Acids Research 37, D782–D785. Data © The Database Center for Life Science, CC BY 4.0.
Related anatomy
Explore the whole body in the interactive 3D human anatomy model, or browse the A–Z list of human structures.