Tonsil

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Tonsil

The Tonsil (/ˈtɒnsɪl/; from Latin tonsilla, diminutive of tonsor, "clipper") is a part of the human body that plays a crucial role in the immune system. It is a pair of soft tissue masses located at the rear of the throat (pharynx).

Anatomy

The tonsils are part of the lymphatic system, which helps to fight infections. They are made up of tissue that contains lymphocytes -- cells in your body that prevent and fight infections. The tonsils are the body's first line of defense as part of the immune system. They trap germs (bacteria and viruses) which you may breathe in.

Types of Tonsils

There are three types of tonsils:

  • Palatine tonsils: These are the most commonly referred to tonsils, located at the top of the throat.
  • Pharyngeal tonsil: Also known as adenoids, these are located in the upper part of the throat behind the nose.
  • Lingual tonsils: These are located at the base of the tongue.

Related Terms

  • Tonsillitis: This is inflammation and infection of the tonsils. The condition can occur at any age and is a common childhood ailment. It is most often diagnosed in children from preschool age through their mid-teens.
  • Tonsillectomy: This is a surgical procedure to remove the tonsils.
  • Tonsillolith: Also known as tonsil stones, these are hard deposits of debris that have lodged in your tonsils.

Etymology

The word "tonsil" comes from the Latin word tonsilla, a diminutive of tonsor which means "clipper". This is likely due to the tonsils' appearance of being 'clipped' onto the back of the throat.

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