The lifespan of a platelet is

• (a) 8-9 days
• (b) 9-12 days
• (c) 20-30 days
• (d) 90 days

The lifespan of a platelet is typically around 8 to 9 days. This short duration is crucial for maintaining healthy blood clotting and overall circulatory function.

Key Facts About Platelets

• Function: Platelets help in blood clotting to prevent excessive bleeding.
• Production: They are produced in the bone marrow from large cells called megakaryocytes.
• Destruction: After their lifespan, platelets are removed from circulation by the spleen and liver.

Importance of Platelet Lifespan

A short lifespan ensures that the body can quickly replace old platelets with new ones, maintaining effective blood clotting and overall health.