Fig. 2

Anatomic position of the thoracic duct and its ampulla at the cranial thoracic inlet on the left. The figures show the region cranial to the thoracic inlet on the left in a 7-week old Large White pig. The pictures are positioned with cranial to the left. A: The thoracic duct (a), emerging from the thoracic cavity, and its ampulla (a’) that joins the external jugular vein craniomedially to the first rib (the dashed line marks the cranial border of the first rib) on the left could be identified. B: The dorsal craniolateral aspect of the left external jugular vein (e) at its junctions with the thoracic duct (a), left tracheal trunk (b), and the efferent lymphatic (d) of the left dorsal superficial cervical lymph nodes. c: left superficial cervical artery; f: left superficial cervical vein. (R: retractors; G: gloves)