ORIGIN: Continuation of the brachial vein
COURSE/DRAINAGE: Begins at the lower border of teres major and ascends into the axilla acompanying the axillary artery and applied to the medial aspect of that structure. It becomes the axillary vein at the outer border of the first rib.
TRIBUTARIES: Tributaries corresponds to the branches of the axillary artery
Anterior circumflex humeral vein
Posterior circumflex humeral vein
Lateral thoracic vein