malt system inculdues unencapsulated tissue encapsulated organs

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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malt system inculdues

unencapsulated tissue

encapsulated organs

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Mucosa-associated lymphoid tissue is MALT is present in the tracts of the body as well as lining of many organs - gastrointestinal tract, lining of the nasopharynx, lungs, etc. These tissues have lymphoid tissues part of it. So MALT is part of the submucosal membrane with lymphoid tissue. It is part of the defense system of the body. It helps in production and release of IgA against bacterial toxins and other pathogens. MALT is also involved in cytotoxic T-cell mediated reactions of the immune system. It has even phagocytic cells, B and T cells that help in antigen specific reactions to protect the body. 

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