This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anatomy
The beginning of the thoracic duct is known as the: 
Select and explain. 
A. Intestinal lymph trunk, B. Bronchomediastinal lymph trunk, C. Jugular lymph trunk, D. Cisterna chyli
D: Cisterna chyli
Answer: D: Cisterna chyli 
Explanation: The cisterna chyli, or the beginning of the thoracic duct, receives the right and left lumbar trunks. The cisterna lies on the bodies of the upper two lumbar veebrae between the right crus of the diaphragm and the abdominal aoa and represents a dilated receptacle for the lymph gathered from the lower pa of the body. Ref: Anatomy to Color and Study By Raphael Poritsky, 2nd Ed, page 58