As a medical professional with expertise in human anatomy, I can provide you with an accurate answer to your question.

The basilic vein is a large superficial vein located in the upper arm. It is part of the venous system and plays a crucial role in returning deoxygenated blood from the tissues of the arm back to the heart. The basilic vein begins at the dorsal venous arch of the hand and travels upward along the inner side of the arm.

The drainage of the basilic vein is as follows:

1. It ascends in the arm and passes the coracobrachialis muscle, which is a muscle in the arm that helps with shoulder movements.
2. The vein then pierces the deep fascia, which is a layer of connective tissue that surrounds muscles and other structures.
3. After piercing the deep fascia, the basilic vein merges with the cephalic vein to form the axillary vein. The axillary vein is located in the axilla, which is the medical term for the armpit.

So, to summarize, the basilic vein drains into the axillary vein after it merges with the cephalic vein.

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Basilic Vein. The basilic vein passes along the back of the forearm on the ulnar side for a distance and then curves to the surface below the elbow. It continues to move up the medial side until it reaches the middle of the upper arm. There, it enters deep into the tissues and joins the brachial vein.read more >>