The action of breathing helps chyle flow up the thoracic duct. The duct also contains smooth muscle within its walls, as well as interval valves (much like large veins), which prevent backflow of lymph. Need to refresh your knowledge of the basic anatomy of the digestive system? Our digestive system quizzes and free learning tools have your back. Thoracic Duct Function Diagram - Chart - diagrams and charts with labels. This diagram depicts Thoracic Duct Function and explains the details of Thoracic Duct Function.
Thoracic Duct Function
