Mondo Knows Facts
Lymph nodes filter interstitial fluid to combat infections
Hundreds of bean-sized nodes trap viruses and bacteria throughout the body
The lymphatic system consists of vessels carrying clear lymph fluid through hundreds of small, bean-shaped lymph nodes. Packed with white blood cells, these nodes filter out cellular waste, foreign debris, and pathogens before returning fluid to the bloodstream.
Where this comes from
Facts that can change over time are reviewed and updated. If something here looks wrong, Mondo would rather know than be confidently incorrect.
Go further
More facts like this
The lymphatic system absorbs dietary fats from the digestive tractSpecialised lacteal vessels in villi transport milky fat emulsions into bloodThe spleen recycles old red blood cells and stores plateletsFist-sized abdominal organ monitors blood quality and mounts immune responsesThe thymus gland trains T-cells during early childhoodChest organ shrinks after puberty after establishing immune cell repertoireWhite blood cells defend the body against infectious pathogensLeukocytes circulate in blood and tissue to destroy invading bacteria and virusesTrillions of microbes live symbiotically on and in human bodiesBacterial cell counts rival the body own cell total to aid metabolismAdrenaline prepares the body for sudden emergency actionAdrenal glands release stress hormones to boost heart rate and blood pressure
Tags: lymph, immunity, nodes
Lymph nodes filter interstitial fluid to combat infections: the short answers
- Where does this come from, and can I check it?
- Hundreds of bean-sized nodes trap viruses and bacteria throughout the body. The figure is taken from MedlinePlus, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.
- Is this really a human body fact?
- Yes. It sits on the Human Body shelf, one of 1,090 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.
- What else can I read about it?
- The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.
