Triceps Brachii
The triceps brachii are muscles located in each of the upper-arms of the human body.
Just as the word 'biceps' refers to a muscle that has two heads i.e. two points of origin, the word 'triceps' that forms part of the name of the triceps brachii muscles refers to the fact that these muscles have three heads, that is three points of origin - as listed in the following table. The triceps brachii may therefore be described as a 'three-headed muscle'. It is the only muscle at the back (posterior aspect of) the upper-arm.
Origin, Insertion and Actions of the Triceps Brachii muscles:
| Points of Origin: | Long head:
|
| Point of Insertion: |
|
| Actions: |
The triceps brachii muscles are labelled on the diagrams of the human anterior muscles and the human posterior muscles.
More about Muscles:
The following are some popular pages in the section about the human muscular system:
- The structure of muscle tissue
- The structure of muscle cells
- Labelled diagrams of the muscles in different parts of the body including anterior muscles, posterior muscles and facial muscles
- Types of muscle contractions
- Movements at joints
There are also more pages about the words used to describe muscles (terminology), the anatomy and physiology of muscles, muscular disorders and associated topics. See also books about sports medicine.
- Anterior Muscles
- Posterior Muscles
- Facial Muscles
- Muscle Terminology (Definitions)
- 1. Structure of Muscle
- 2. Structure of Muscle Cells
- 3. Muscle Filaments
- 4. Sliding Filament Theory
- 5. Neuromuscular Junction
- 6. Actions at Neuromuscular Junction
- Types of Muscle Contractions
- Muscular Disorders
- Effects of exercise on muscles
