Tonsils are lymph nodes located in the back of the mouth and at the top of the throat. They serve as a vital part of the immune system.
Function of Tonsils
Tonsils primarily function as a first line of defense against bacteria and viruses entering the body through the mouth and nose. They contain immune cells that can trap and destroy these pathogens, helping to prevent infections.
Tonsillitis and Strep Throat
Tonsils are susceptible to infection themselves, most commonly by bacteria or viruses. This condition is known as tonsillitis. A frequent cause of tonsillitis is strep throat, a bacterial infection caused by Streptococcus bacteria. When infected, tonsils can become inflamed, swollen, and painful, often accompanied by a sore throat, fever, and difficulty swallowing. The infection can also spread to other parts of the throat.
Summary
In essence, tonsils are crucial components of the immune system, filtering out harmful germs to protect the body from infection. While they are prone to infections like tonsillitis, their role in immune defense is significant.
