How are normal red cells removed when they lose the ability to deform?
a. After 120 days, most are phagocytized by splenic macrophages.
b. After 10 to 14 days, most are phagocytized by splenic macrophages.
c. After 10 to 14 days, most are destroyed by complement.
d. After 120 days, most are destroyed inside the blood vessels.
ANS: A
At the end of their 120-day normal life span, red cells are removed from circulation by splenic macrophages.
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