IMMUNOLOGY

Detailed explanation-1: -The lingual tonsils are a collection of lymphatic tissue located in the lamina propria of the root of the tongue. This lymphatic tissue consists of the lymphatic nodules rich in cells of the immune system (immunocytes).

Detailed explanation-2: -Answer and Explanation: The tonsils located at the base of the tongue are the lingual tonsils.

Detailed explanation-3: -The bottom portion of the ring at the base of tongue is called the lingual tonsils (see below). As mentioned above, the palatine tonsils make up the sides of the ring, and the pharyngeal tonsils, also known as the adenoids, form the top of the ring, located near the roof of the nasopharynx.