Contents Of Axilla Shown By Dissection Made From Below Upward

The contents of the axilla are the axillary vein and its branches; the axillary artery and it branches; the axillary or brachial plexus of nerves, and most of its branches; the lateral cutaneous branches of the intercostal nerves, that of the second being known as the intercosto-humeral; the posterior or long thoracic nerve; three chains of axillary lymphatic glands, and a large quantity of areolar tissue and fat, 1899. From 'The Treatise of the Human Anatomy and Its Applications to the Practice of Medicine and Surgery, Volume I' (1899). (Photo by VintageMedStock/Getty Images)