What is the name of the clusters of lymphatic nodules located in the lining of the small intestine?

The clusters of lymphatic nodules present in the inner lining of ileum is known as PEYER'S PATCH.

Explanation:

The lowest most part of the small intestine is known as ileum. In this part  of intestine lymph nodules are present. Lymph nodules are small patch of lymphoid tissue inside the inner lining of respiratory system and urinary system.

These are named on the name of anotomist Hans Conrad Peyer. It is oval/round in shape and present inner lining of intestine.

They play a prominent role in immunologic responses. Like other lymph organs contain B and T lymphocytes.

answer; both surfaces of the membrane are nonpermeable

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