MICROANATOMY

BLOOD CARDIOVASCULAR SYSTEM LYMPHOID ORGANS

LYMPH NODES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The thoracic duct
A
largest lymphatic vessel in the human body
B
also called the left lymphatic duct /ailmentary duct.
C
drains lymph into the circulatory system
D
also called the menaltarable ducts
Explanation: 

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: -Function. The thoracic duct collects most of the lymph in the body other than from the right thorax, arm, head, and neck. These are drained by the right lymphatic duct.

Detailed explanation-3: -After collecting in the cisterna chyli, lymph flows proximally through the thoracic duct, and ultimately empties in the venous circulation at the junction of the left internal jugular and subclavian veins.

Detailed explanation-4: -The visceral lymph nodes are responsible for the lymphatic drainage of the thoracic viscera such as the heart and the lungs. These nodes include the brachiocephalic nodes, the posterior mediastinal nodes and the tracheobronchial nodes.

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