Question

write the function of the various cells present in the blood ​

Answer 1

Answer:

RBC,

Red Blood cells (RBC) are small, biconvex cells that contain haemoglobin to transport oxygen from the lungs to the body cells and carbon dioxide from body cells to the lungs.

WBC

White Blood cells (WBC) main function is defence of the body against disease and other infection.

Blood platelets

The main function of platelets, the maintenance of hemostasis, depends on three of their properties, the endothelial supporting function of platelets, the ability to form hemostatic plugs and to release lipoprotein material

Plasma

Plasma carries water, salts and enzymes. The main role of plasma is to take nutrients, hormones, and proteins to the parts of the body that need it. Cells also put their waste products into the plasma. The plasma then helps remove this waste from the body.

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Answer 2

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There are three types of blood cells. They are:

• Red blood cells
• White blood cells
• Platelets

1. RBC:::-

• Transport oxygen from the lungs to the cells of the body.

• Pick up carbon dioxide from other tissues and unload it in the lungs.

2. WBC::::-

• It is the part of the body that protects itself against foreign substances and various types of infections.

• They are made in the bone marrow from multi-potent cells called hematopoietic stem cells.

• They exist in all parts of the body, including the connective tissue, lymph system, and the bloodstream.

3. Platelets:::-

• Platelets are the parts of cells that the body uses for clotting.

• Helps to promote other blood clotting mechanisms. Example: Secrete procoagulants (clotting factors) to promote blood clotting.

• They secrete vasoconstrictors which constrict blood vessels, causing vascular spasms in broken blood vessels.

• They secrete chemicals that attract neutrophils and monocytes to sites of inflammation.

• Dissolve blood clots when they are no longer needed.

• Digest and destroy bacteria.

• They secrete growth factors to maintain the linings of blood vessels.