1. Noun. (anatomy) A muscle in the upper arm that flexes the elbow joint. ¹
¹ Source: wiktionary.com
Medical Definition of Brachialis
1. Origin, lower two-thirds of anterior surface of humerus; insertion, coronoid process of ulna; action, flexes elbow; nerve supply, musculocutaneous, usually with a minor contribution from the radial.
Synonym: musculus brachialis, brachial muscle.
(05 Mar 2000)
