GENERAL HISTOLOGY

Detailed explanation-1: -At the axilla, the brachial vein is renamed the axillary vein. The blood in the axillary vein drains into the subclavian vein. The subclavian veins will merge with the internal jugular veins from the head to form the brachiocephalic veins.

Detailed explanation-2: -The brachial vein specifically drains oxygen-poor blood from the muscles and deep tissues of the upper arm, between the elbow and shoulder. The upper arm muscles include the biceps brachii, brachialis, coracobrachialis, and triceps brachii.

Detailed explanation-3: -The basilic vein drains the medial side of the superficial venous network of the dorsum of the hand, which in turn drains blood from the palm of the hand 2. As it ascends in the forearm and arm, the basilic vein drains the medial aspect of the upper limb via numerous superficial veins 1.

Detailed explanation-4: -The brachial veins are usually 2 in number and they are located on either side of the brachial artery. They are usually formed by the union of the radial and the ulnar venae comitantes, near the level of the elbow [1].