ANATOMY AND PHYSIOLOGY FOR NURSES 



through the diaphragm, and ascends to the lower part 

 of the neck. In its ascent it lies anterior to the spine, 

 and by the side of the aorta and esophagus. At the lower 

 part of the neck it makes a sudden turn downward and 



Longus colli muscle. 



Thyroid, 

 gland. 



Trachei 



Axillary 

 lymphatic 

 trunk. 



Internal jugular vein. 

 FlG. 9- Topography of the thoracic duct ^uckerkandl). 



forward, and terminates by opening into the left subcla- 

 vian vein. The thoracic duct is equal in diameter to a 

 goose-quill, and at its termination is provided with a pair 

 of semilunar valves, which prevent the admission of venous 

 blood. 



