The Average Life Span of a Red Blood Cell Is

Question

The average life span of a red blood cell is
A) 1 week.
B) 1 month.
C) 4 months.
D) 6 months.
E) 1 year.

Accepted Answer

The average life span of a red blood cell is 4 months, or approximately 120 days. This means that the body needs to constantly produce new red blood cells to replace the ones that have reached the end of their life cycle.