The tonsils are a pair of small, round glands located at the back of the throat, one on each side. They are part of the lymphatic system, which helps the body fight infection. Tonsils play a role in the immune system by helping to trap and fight bacteria and viruses that enter the body through the mouth and nose.
The tonsils are made up of lymphoid tissue and are composed of lymphocytes, which are a type of white blood cells. They are located at the back of the throat, on either side of the tongue, and are covered by mucous membranes.
The main function of the tonsils is to act as a defense mechanism against bacteria and viruses that are ingested or inhaled. They help to trap and destroy pathogens that enter the body through the mouth and nose, thus preventing them from causing infections in the body. The tonsils also produce antibodies to help the body fight off infections.
While the tonsils play an important role in the immune system, they are also prone to infection and inflammation. Tonsillitis is a common condition in which the tonsils become inflamed and swollen due to viral or bacterial infections. Recurrent or persistent tonsillitis may require medical intervention, including the removal of the tonsils through a surgical procedure known as a tonsillectomy.