Lymphatic vessels and lymph nodes of the neck and thorax, shown in situ. Dissection of the neck and thorax, thoracic viscera removed to show lymph nodes of the mediastinum, supraclavicular nodes, cervical nodes, and thoracic duct. Brachiocephalic veins, jugular vein, azygos vein, aorta, subclavian artery and carotid artery also shown, with trachea, bronchi, and thyroid gland. Anterior view.