Thoracic Duct

In human anatomy, the thoracic duct of the lymphatic system is the largest lymphatic vessel in the body. It is also known as the left lymphatic duct, alimentary duct, chyliferous duct, and Van Hoorne's canal.

In adults, the thoracic duct is typically 38-45cm in length and an average diameter of about 5mm. It usually starts from the level of the second lumbar vertebra and extends to the root of the neck. It collects most of the lymph in the body (except that from the right arm and the right side of the chest, neck and head, and lower left lobe of the lung, which is collected by the right lymphatic duct) and drains into the systemic (blood) circulation at the left brachiocephalic vein between the left subclavian and left internal jugular veins.

Read more about Thoracic DuctLocation, Volume, Mechanism, and Direction of Flow, Clinical Significance, Additional Images

Other articles related to "thoracic duct":

Lymphology - History
... yellow matter." In about 1563 Bartolomeo Eustachi, a professor of anatomy, described the thoracic duct in horses as vena alba thoracis ... He also identified the thoracic duct but failed to notice its connection with the lacteals ... He traced this fluid to the thoracic duct, which he then followed to a chyle-filled sac he called the chyli receptaculum, which is now known as the cisternae chyli further investigations led him to find that ...
Anatomical Details - First Part of The Left Subclavian Artery - Relations
... behind, it is in relation with the esophagus, thoracic duct, left recurrent nerve, inferior cervical ganglion of the sympathetic trunk, and Longus colli higher up ... Medial to it are the esophagus, trachea, thoracic duct, and left recurrent nerve lateral to it, the left pleura and lung ...