IMMUNOLOGY

Detailed explanation-1: -The tonsils are lymphoid tissues that are found at the back of the throat and help fight infection. The tonsils that we all know about are the ones on the sides of the throat and can be seen when you look at your throat in the mirror and these are called palatine tonsils.

Detailed explanation-2: -tonsil, small mass of lymphatic tissue located in the wall of the pharynx at the rear of the throat of humans and other mammals. In humans, the term is used to designate any of three sets of tonsils, most commonly the palatine tonsils.

Detailed explanation-3: -Tonsils are large non-encapsulated (or partially encapsulated) masses of lymphoid tissue, that lie in the walls of the pharynx and nasopharynx and at the base of the tongue.

Detailed explanation-4: -Lymphoid tissue is found in the posterior one-third of the tongue. It is a part of Waldeyer ring [2]. Its nomenclature as a muscular hydrostat arises from its ability to move and to give skeletal support for this motion. These hydrostatic properties are related to the specialized muscle arrays and muscle fibers.