Multiple Choice
Cell-mediated immunity differs from humoral immunity in that __________.
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41. Immune System
Immune System
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What is the main function of lymph nodes in the immune system?
A
Produce red blood cells
B
Filter lymph and trap pathogens
C
Store calcium for bone health
D
Regulate blood glucose levels
Verified step by step guidance1
Step 1: Begin by understanding the role of the lymphatic system in the body. The lymphatic system is a network of vessels, nodes, and organs that helps maintain fluid balance and plays a key role in immune defense.
Step 2: Focus on lymph nodes specifically. Lymph nodes are small, bean-shaped structures located along lymphatic vessels. They act as filters for lymph, a fluid that circulates through the lymphatic system.
Step 3: Learn how lymph nodes contribute to immune defense. They trap pathogens (such as bacteria, viruses, and other harmful particles) and house immune cells like lymphocytes and macrophages, which identify and destroy these invaders.
Step 4: Compare the given options to the function of lymph nodes. The correct function is 'Filter lymph and trap pathogens,' as this aligns with their role in the immune system.
Step 5: Eliminate the incorrect options ('Produce red blood cells,' 'Store calcium for bone health,' and 'Regulate blood glucose levels') because these functions are unrelated to the lymph nodes' role in the immune system.
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