thoracic duct

American  

noun

Anatomy.

1. the main trunk of the lymphatic system, passing along the spinal column in the thoracic cavity, and conveying a large amount of lymph and chyle into the venous circulation.

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thoracic duct British  

noun

1. the major duct of the lymphatic system, beginning below the diaphragm and ascending in front of the spinal column to the base of the neck

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Etymology

Origin of thoracic duct

First recorded in 1720–30

Example Sentences

Figure 21.4 Major Trunks and Ducts of the Lymphatic System The thoracic duct drains a much larger portion of the body than does the right lymphatic duct.

From Textbooks • Jun. 19, 2013

On the left side of the body, the remaining portions of the body drain into the larger thoracic duct, which drains into the left subclavian vein.

From Textbooks • Jun. 19, 2013

The lymph from the rest of the body enters the bloodstream through the thoracic duct via all the remaining lymphatic trunks.

From Textbooks • Jun. 19, 2013

The aorta, thoracic duct, and azygous vein pass through the aortic hiatus of the posterior diaphragm.

From Textbooks • Jun. 19, 2013

Through the lacteals to the thoracic duct, by which it is emptied into the left subclavian vein.

From Physiology and Hygiene for Secondary Schools by Walters, Francis M.