Muscle, Brachialis (M. Brachialis, Pna, Bna, Jna)

Brachialis muscle - m. brachii - shoulder muscle. It is a large muscle of the body that is found on the front side of the shoulder and forearm. It consists of three parts: the pectoralis major muscle, the pectoralis minor muscle and the biceps brachii muscle. Between the heads of the deltoid muscle it forms a triangular shape. The lateral part of this muscle is called the key, and the lower part is called the head of the humerus.