Platelets In Blood MCQ - Practice Questions with Answers

• Platelets are enucleated disk-like cell fragments found in the blood.
• Size of platelets is 2-3 micrometres
• The number of blood platelets in the blood is usually 200,000 to 400,000 per microlitre of blood.
• This number is fewer than RBCs and greater than WBCs.  
• These are formed by the fragmentation of giant megakaryocytes in the bone marrow.
• The average lifespan of platelets is about 7-10 days.
• These release platelet factors that help in the clotting of blood. 

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