Question

what is the use of platlets​

Answer 1

Answer:

Platelets (thrombocytes) are colorless blood cells that help blood clot. Platelets stop bleeding by clumping and forming plugs in blood vessel injuries. Thrombocytopenia might occur as a result of a bone marrow disorder such as leukemia or an immune system problem.

Answer 2

Answer:

Platelets are small fragments of bone marrow cells and are therefore not really classified as cells themselves.

Platelets have the following functions:

Secrete vasoconstrictors which constrict blood vessels, causing vascular spasms in broken blood vessels

Form temporary platelet plugs to stop bleeding

Secrete procoagulants (clotting factors) to promote blood clotting

Dissolve blood clots when they are no longer needed

Digest and destroy bacteria

Secrete chemicals that attract neutrophils and monocytes to sites of inflammation

Secrete growth factors to maintain the linings of blood vessel.The first three functions listed above refer to important haemostatic mechanisms in which platelets play a role in during bleeding: vascular spasms, platelet plug formation and blood clotting (coagulation).

1. Secrete vasoconstrictors which constrict blood vessels, causing vascular spasms in broken blood vessels.
2. Form temporary platelet plugs to stop bleeding.
3. Secrete procoagulants (clotting factors) to promote blood clotting.
4. Dissolve blood clots when they are no longer needed.

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