The average life span of red blood corpuscles is about ____:

Q. The average life span of red blood corpuscles is about ____:
Answer: 100 - 120 days
Notes: The red blood cells develop in the bone marrow and circulate for about 100–120 days in the body before their components are recycled by macrophages in liver and spleen (Grave yard of RBC). The old, worn out and dead RBC are destroyed mainly in an organ called spleen.

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