This section is from the book "Anatomy Of The Arteries Of The Human Body", by John Hatch Power. Also available from Amazon: Anatomy of the Arteries of the Human Body, with the Descriptive Anatomy of the Heart.
The Muscular Branches are distributed in all directions: some go forwards to the biceps muscle, others backwards to the brachialis anticus; a third set are distributed externally to the coraco-brachialis muscle; and a fourth internally, extend to the pectoral muscles.
* Surgical Anatomy of the Arteries, p. 180. 19
At the bend of the elbow, the brachial artery divides into two terminating branches. Professor Harrison refers this division to a point opposite to the coronoid process of the ulna; and Professor Quain states that the usual place is a little below the elbow-joint.
The terminating branches are the following :—