⚙️ how
How long do human red blood cells live?
Quick Answer
Red blood cells usually live about 120 days. After that, they are removed and recycled mainly by the spleen and liver.
The Full Story
Red blood cells have no nucleus when mature, which helps them carry more hemoglobin but limits repair. As they age, their membranes become less flexible, making it harder for them to pass through tiny blood vessels. The spleen filters out older or damaged cells, and their components are broken down and reused. Iron is recycled efficiently, which is why the body conserves it so well.
Key Facts
1.Average red blood cell lifespan is about 120 days
2.The spleen helps remove old red blood cells
3.Iron from hemoglobin is recycled
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Suggested video title for this topic:
"Why red blood cells last only about four months"
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