|Derivation||The muscle attached to the coracoid process and the upper arm (brachia).|
|Origin||Coracoid process of scapula.|
|Insertion||The mid-point on the medial side of the humerus.|
|Action||Adducts the upper arm and lifts it forward.|
This small muscle is framed by the biceps and triceps on the medial side of the arm.
Coracobrachialis is a distinct form here in the armpit when the tensed arm is held away from the body. It lengthens the groove between biceps and triceps, extending it behind pectoralis and to the fold between the arm and the torso.