Lymphatics upper limb, lungs, neck, illustration. Lymphatics of the upper limb pass through lymph nodes at the elbow and drain into axillary (armpit) nodes around the axillary vein (blue). Lymph from the lungs passes into bronchial lymph nodes, and numerous lymphatic vessels and nodes are present in the neck. Most of the lymphatic fluid drains into the thoracic duct shown as a white tube to the left of the left carotid artery (red). From Lizars, J. 1823 A system of anatomical plates of the human body. W. H.Lizars, Edinburgh.