LYMPHATIC
LYMPHATIC SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What best describes a lymph node?
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Type of pathogen that attacks the immune system
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Special kind of immune cell found in the lymph
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Any organ being attacked by pathogens
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A capsule in the lymph vessels that are filled with B cells and T cells
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Explanation:
Detailed explanation-1: -Lymph nodes are small bean-shaped structures that are usually less than 2.5 cm in length. They are widely distributed throughout the body along the lymphatic pathways where they filter the lymph before it is returned to the blood. Lymph nodes are not present in the central nervous system.
Detailed explanation-2: -Each lymph node is divided into two general regions, the capsule and the cortex. The capsule is an outer layer of connective tissue. Underlying the capsule is the cortex, a region containing mostly inactivated B and T lymphocytes plus numerous accessory cells such as dendritic cells and macrophages.
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