GENERAL HISTOLOGY

Detailed explanation-1: -The function of the thoracic duct is to transport lymph back into the circulatory system. Interstitial fluid is collected by lymph capillaries from the interstitial space. Lymph then moves through lymphatic vessels to lymph nodes. Lymphatic vessels merge to create the lymphatic ducts which drain into the venous system.

Detailed explanation-2: -The lymphatic system (lymph, lymph nodes and lymph vessels) supports the circulatory system by draining excess fluids and proteins from tissues back into the bloodstream, thereby preventing tissue swelling.

Detailed explanation-3: -The thoracic duct usually drains into the systemic (blood) circulation at the left venous angle where left subclavian and left internal jugular veins unite to form the left brachiocephalic vein.

Detailed explanation-4: -Collecting ducts: Lymphatic vessels empty the lymph into the right lymphatic duct and left lymphatic duct (also called the thoracic duct). These ducts connect to the subclavian vein, which returns lymph to your bloodstream. The subclavian vein runs below your collarbone.