The document describes the anatomy of the humerus bone and the muscles, nerves, blood vessels, and veins of the arm. It notes that the humerus has a cylindrical shaft that flattens distally, with articular and non-articular parts at the distal end. It describes the anterior and posterior muscle compartments of the arm, listing the muscles in each, along with their origins, insertions and actions. It also details the major nerves, blood vessels, and veins of the arm.

1. The Arm Maribel G. Castro-Enano, MD CPU College of Medicine

18. The brachial artery and its collaterals

20. Good Afternoon!