alleryStart learning →How long do erythrocytes live in the circulation?
AUp to 30 days
BUp to 120 days
CUp to 10 days
DUp to 400 days
Answer & Solution
Correct answer: B. Up to 120 days
1. Erythrocytes live up to 120 days in the circulation.
2. Worn-out cells are then removed by macrophages in the bone marrow, liver and spleen.
3. About 10 days is the platelet lifespan, so that option belongs to a different formed element.
_Source: OpenStax Anatomy and Physiology (CC BY 4.0), Ch 18 "The Cardiovascular System: Blood", section 18.3 Erythrocytes_
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