Multiple Choice
Which of the following best describes the typical location and structure of lymph nodes in the human body?
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20. The Lymphatic System
Introduction to the Lymphatic System
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Lymph from which regions of the body is drained into the right lymphatic duct?
A
Entire body except the right arm
B
Both legs and the abdomen
C
Left arm, left side of the head and neck, and left thorax
D
Right arm, right side of the head and neck, and right thorax
Verified step by step guidance1
Understand the function of the lymphatic system: It is responsible for the drainage of lymph, a fluid containing white blood cells, throughout the body.
Identify the two main lymphatic ducts: the right lymphatic duct and the thoracic duct. The right lymphatic duct drains lymph from specific regions, while the thoracic duct drains lymph from the rest of the body.
Recognize the regions drained by the right lymphatic duct: It specifically drains lymph from the right arm, the right side of the head and neck, and the right thorax.
Differentiate between the regions drained by the right lymphatic duct and the thoracic duct: The thoracic duct drains lymph from the entire body except for the regions served by the right lymphatic duct.
Conclude that the right lymphatic duct is responsible for draining lymph from the right arm, right side of the head and neck, and right thorax, as opposed to other regions of the body.
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