Multiple Choice
The defense of the body against harmful substances is primarily the function of which part of the lymphatic system?
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20. The Lymphatic System
Introduction to the Lymphatic System
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Which of the following statements is true about the lymphatic system?
A
The lymphatic system is a closed circulatory system.
B
The lymphatic system helps in the absorption of dietary fats.
C
The lymphatic system produces red blood cells.
D
The lymphatic system is responsible for transporting oxygen to tissues.
Verified step by step guidance1
Understand the primary functions of the lymphatic system: it is responsible for maintaining fluid balance, filtering pathogens, and facilitating immune responses.
Recognize that the lymphatic system is not a closed circulatory system; it is an open system that transports lymph fluid through lymphatic vessels.
Identify that the lymphatic system does not produce red blood cells; this function is carried out by the bone marrow.
Clarify that the lymphatic system is not responsible for transporting oxygen to tissues; this is the role of the circulatory system, specifically the blood vessels and red blood cells.
Learn that the lymphatic system aids in the absorption of dietary fats through structures called lacteals located in the small intestine.
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