Clusters of lymphocytes located adjacent to the small bowel protect the intestines from ingested foreign antigens. These collections of lymphocytes are called:

Question

Quizplus · Accepted Answer

The gastrointestinal tract is protected from ingested antigenic material by a system of mucosal-associated lymphoid tissue (MALT) consisting of lymphoid nodules located within the mucosa of the GI tract. In the small bowel these lymphoid nodules are called Peyer's patches. Mucous patches are lesions of secondary syphilis found in the oral cavity. Herald patches are the first lesions of pityriasis rosea that appear on the trunk prior to the general dissemination of the rash. Sentinel nodes are the lymph nodes that drain a particular body part. They are typically the first affected by diseases (such as cancers) that arise in the organ they drain.

Clusters of Lymphocytes Located Adjacent to the Small Bowel Protect