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

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

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

The chylomicrons are transported in the lymphatic vessels and empty through the thoracic duct into the subclavian vein of the circulatory system.

From Textbooks • Jun. 19, 2013

The larger of the lymph tubes is called the thoracic duct.

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