Coracoid process of scapula to middle, medial humerus/opposite deltoid tuberosity.
Coracoid process of scapula is a long curved projection from the neck of the scapula, overhanging the glenoid cavity and giving attachment to the short head of the biceps, the coracobrachial muscle, the smaller pectoral muscle, and the coracoacromial ligament.
Attaches approximately half way down the medial aspect of the humerus.
Adducts humerus, flexes the arm at glenohumeral joint.
Innervation – Nerve control
It is perforated by and innervated by the musculocutaneous nerve, which arises from the anterior division of the upper (C5, C6) & middle trunks (C7) of the brachial plexus. Wiki
The brachial artery is the major blood vessel of the (upper) arm. It is closely related to the median nerve; in proximal regions, the median nerve is immediately lateral to the brachial artery. Distally, the median nerve crosses the medial side of the brachial artery and lies anterior to the elbow joint. Wiki
Posterior Deltoid, Triceps Brachii (long head), Latissimus Dorsi, Teres Major. Pictures of muscles
Trigger Point Referrals
American Academy of Manual Medicine
The American Heritage® Stedman’s Medical Dictionary