What are lymph nodes?

The lymph nodes is called the lymph nodes. Gray's Anatomy (1918) describes it as small, bean-shaped organs of the immune system.

What it is

  • Small, bean-shaped organs of the immune system.
  • Filter lymph and house lymphocytes.
  • Enlarge when fighting infection.

Where it is

  • Scattered along the lymphatic vessels.
  • Grouped in the neck, armpits, groin, chest, and abdomen.
  • Hundreds are present throughout the body.

Source:

Last verified: 2026-07-18

  • Best Anatomy Answers is an educational reference about human anatomy. It is not medical advice — for any health concern, talk to a licensed medical professional.

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