Tonsils

Definition

Tonsils are small, lymphoid tissues located at the back of the throat that play a role in the body's immune system by trapping and removing bacteria and other pathogens from entering the body through the mouth or nose. They are part of both the lymphatic and immune systems, acting as the first line of defense against ingested or inhaled foreign pathogens.

Related terms

Lymphatic System:

A network of vessels, tissues, and organs that help rid the body of toxins, waste, and other unwanted materials.

Immune Response: The body's defensive reaction to foreign substances or pathogens entering it, involving recognition, response, and memory components of the immune system.

Pathogens:

Microorganisms such as bacteria, viruses, fungi, and parasites that can cause disease within a host organism