Origin
Lateral head – above the radial groove of the humerus.
Medial head – below the radial groove of the humerus.
Long head – infraglenoid tubercle of the scapula.
Insertion
Olecranon process of the ulna.
Blood supply
Profunda brachii.
Nerve supply
Radial nerve.
Action
It helps to extend the elbow joint.
Disease/Injury
Tendon tear or rupture can occur as a result of excessive stress on the triceps brachii.
Muscle Exercise
Exercises like close-grip bench presses, triceps extensions, and push-ups increase the strength of the muscle.
Interesting Facts
The triceps makes up 2/3rd of the muscle mass in the arm. It is capable of moving a significant amount of weight. The triceps is a fairly strong and stable muscle.
