Lymph from the right arm, the right half of the head, and the right chest is received by the
(a) Cisterna chyli
(b) Right lymphatic duct
(c) Right thoracic duct
(d) Aorta

Guida verificata passo dopo passo

Step 1: Understand the anatomy of the lymphatic drainage system, which collects lymph from different parts of the body and returns it to the bloodstream.

Step 2: Recall that the lymph from the right arm, right half of the head, and right chest is drained by a specific lymphatic duct responsible for the upper right quadrant of the body.

Step 3: Identify the lymphatic ducts: the right lymphatic duct drains lymph from the right upper limb, right side of the head and neck, and right thorax; the thoracic duct drains lymph from the rest of the body.

Step 4: Recognize that the cisterna chyli is a sac-like structure that collects lymph from the lower limbs and abdomen, not the right upper body.

Step 5: Conclude that the correct structure receiving lymph from the right arm, right half of the head, and right chest is the right lymphatic duct.

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Lymphatic Drainage of the Upper Right Body

The lymphatic system collects excess fluid from tissues and returns it to the bloodstream. The right arm, right half of the head, and right chest drain lymph into a specific duct, which channels lymph back into the venous system. Understanding which regions drain into which ducts is essential for identifying the correct lymphatic pathway.

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Lymphatic Ducts

Right Lymphatic Duct

The right lymphatic duct is a short vessel that collects lymph from the right upper limb, right side of the head and neck, and right thorax. It empties lymph into the right subclavian vein, facilitating the return of lymph to the circulatory system. This duct is distinct from the thoracic duct, which drains lymph from the rest of the body.

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Percorso guidato

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Lymphatic Ducts

Cisterna Chyli and Thoracic Duct

The cisterna chyli is a dilated sac at the lower end of the thoracic duct that collects lymph from the lower limbs and abdomen. The thoracic duct is the main lymphatic vessel draining lymph from the entire body except the right upper quadrant. It empties into the left subclavian vein, contrasting with the right lymphatic duct's drainage area.

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