Question

What happens if platelets are absent in the blood?​

Answer 1

• In the absence of platelets, capillaries become more fragile, permitting spontaneous loss of blood and increasing the tendency to form bruises after minor injury. Plateletsimmediately aggregate at the site of injury of a blood vessel, tending to seal the aperture.

Answer 2

Explanation:

The blood platelets are required for the process of blood clotting. Whenever there is an injury, to prevent the loss of blood it is necessary to form a clot. The vitamin K, clotting factors, calcium ions and the platelets are necessary agents for the formation of a blood clot. If there are no platelets, there will be no clot formation. This might result in haemorrhage in which there is continuous blood loss.