Multiple choice

What helps in clotting of blood in injured vessels?

  1. Platelets

  2. Lymphocyte

  3. Leucocyte

  4. Erythrocyte

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A Correct answer
Explanation

Platelets, also known as thrombocytes, are cell fragments that aggregate at the site of a wound to form a plug. They release chemicals that trigger the formation of a fibrin clot to stop bleeding. Erythrocytes carry oxygen, while leucocytes (including lymphocytes) are involved in immune responses.

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