Question

The average life span of red blood corpuscles is about :

• A. 100 - 120 days
• B. 100 - 200 days
• C. 160 - 180 days
• D. 150 -200 days

Answer 1

Answer:

A. 100 - 120 days

Normal human red blood cells have an average life span of about 120 days in the circulation after which they are engulfed by macrophages.