APPLIED RADIOLOGICAL ANATOMY

Detailed explanation-1: -The lingual tonsil is located far back at the base of the tongue, on its back surface. All of these tonsillar structures together are sometimes called Waldeyer’s ring since they form a ring around the opening to the throat from the mouth and nose.

Detailed explanation-2: -The tonsils are also part of the immune system. Because of their location at the throat and palate, they can stop germs entering the body through the mouth or the nose. The tonsils also contain a lot of white blood cells, which are responsible for killing germs.

Detailed explanation-3: -Waldeyer’s ring consists of four tonsillar structures (namely, the pharyngeal, tubal, palatine and lingual tonsils) as well as small collections of lymphatic tissue disbursed throughout the mucosal lining of the pharynx (mucosa-associated lymphoid tissue, MALT).

Detailed explanation-4: -The lymphatic tissues located in the oropharynx are composed of a circumferential tonsillar ring, known as the Waldeyer’s ring which consists of the palatine tonsils (faucial tonsils), adenoid (nasopharyngeal tonsil), lingual tonsil, and tubal tonsils.