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Related to triceps muscle: Biceps Muscle
Arm muscle. Origin: infraglenoid tubercle of scapula, posterior of proximal humerus, posterior of distal humerus. Insertion: olecranon process. Nerve: radial (C6-C8). Action: extends forearm.Synonym: triceps brachii muscle See: arm for illus. (Muscles of the Arm)
See also: muscle
Medical Dictionary, © 2009 Farlex and Partners
triceps muscleA three-headed muscle attached to the back up the upper arm bone (humerus) and to the outer edge of the shoulder-blade (scapula) and running down the back of the arm to be inserted by a strong TENDON into the curved process (olecranon process) on the back of one of the two forearm bones (the ulna). The triceps muscle straightens the elbow in opposition to the biceps muscle, which bends it.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005