PATHOLOGY

Detailed explanation-1: -Your subclavian veins then drain into your right and left brachiocephalic veins. Those are the two curves in the middle of the “m”. At the middle dipping point, your brachiocephalic veins merge to form the superior vena cava. That’s the large vein that carries blood down into your heart.

Detailed explanation-2: -At the axilla, the brachial vein is renamed the axillary vein. The blood in the axillary vein drains into the subclavian vein.

Detailed explanation-3: -Blood travels from the heart into the subclavian artery which continues on down the arm as the axillary artery. The axillary artery travels deep in the arm pit and gives off several small branches which feed muscles and bones around the shoulder. The axillary artery continues down the arm as the brachial artery.