Definition of Musculus triceps brachii
1. Noun. The skeletal muscle having three origins that extends the forearm when it contracts.
Medical Definition of Musculus triceps brachii
1.
Origin, long or scapular head: lateral border of scapula below glenoid fossa, lateral head: lateral and posterior surface of humerus below greater tubercle, medial head: posterior surface of humerus below radial groove; insertion, olecranon of ulna; action, extends elbow; nerve supply, radial.
Synonym: musculus triceps brachii, triceps muscle of arm.
(05 Mar 2000)
Lexicographical Neighbors of Musculus Triceps Brachii
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