Question

The life span of human granulocytic WBC is approximately

• A. Between 2 to 3 months
• B. More than 4 months
• C. Less than 10 days
• D. Between 13 to 20 days

Answer 1

The correct option is C Less than 10 days

The lifespan of white blood cells ranges from 8-10 days, after which time they are destroyed in the lymphatic system. When immature WBCs are first released from the bone marrow into the peripheral blood, they are called "bands" or "stabs." Leukocytes fight infection through a process known as phagocytosis.

So the correct answer is 'Less than 10 days'