Lymphoid tissue in the body includes primary, secondary, and tertiary tissues. Secondary lymphoid organs like lymph nodes initiate immune responses when lymphocytes are activated by antigens. Mature lymphocytes recirculate between blood and lymphoid organs until encountering specific antigens. The tonsils are oval masses of lymphoid tissue in the throat that help prevent pathogens from entering through the mouth and nose. They have crypts that increase surface area for protection. Infected tonsils can act as sites of infection.
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Lymphoid tissue in the body includes primary, secondary, and tertiary tissues. Secondary lymphoid organs like lymph nodes initiate immune responses when lymphocytes are activated by antigens. Mature lymphocytes recirculate between blood and lymphoid organs until encountering specific antigens. The tonsils are oval masses of lymphoid tissue in the throat that help prevent pathogens from entering through the mouth and nose. They have crypts that increase surface area for protection. Infected tonsils can act as sites of infection.
Introduction to SlideShare for BusinessesSlideShare
As the global hub of professional content, SlideShare can help you or your business amplify its reach, get discovered by targeted audiences and capture more professional opportunities. Learn why you should use SlideShare for your business
We went to 7 countries to learn child education.
For making new Nursery in Japan.
We want to make Environment that is good for mind of children and adults.
We went to 7 countries to learn child education.
For making new Nursery in Japan.
We want to make Environment that is good for mind of children and adults.
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