The palatine tonsils are two oval-shaped masses of lymphoid tissue located at the back of the throat, one on each side. They play a role in the immune system by helping to fight infections, especially during childhood. The tonsils trap bacteria and viruses that enter the body through the mouth and nose. These structures are part of a group of tissues known as Waldeyer's ring, which includes the adenoids and lingual tonsils. While they are important for immune function, the palatine tonsils can become enlarged or infected, leading to conditions such as tonsillitis, which may require medical attention.