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How does the structure of a lymph node allow immune cells residing within the lymph node to perform their protective function?

User SethRocker
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Answer:

Each lymph node is well-supplied by both lymphatic vessels and blood vessels, which allow lymphocytes to enter and exit. The nodes are contained within a tough capsule, and surrounded by specialised fatty deposits, both of which may give some physical protection.

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User Omid Ariyan
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