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Which of the following best describes the structure, production, and healthy concentration of platelets?

A. Platelets are produced in the spleen and normally number 150,000-400,000 per mm³ in blood.
B. Platelets are cell fragments produced by megakaryocytes in bone marrow and normally number 150,000-400,000 per mm³ in blood.
C. Platelets are produced in the liver and normally number 100,000-300,000 per mm³ in blood.
D. Platelets are cell fragments produced by leukocytes and normally number 250,000-450,000 per mm³ in blood.

Sagot :

GinnyAnswer

Final answer:

Platelets are vital in blood clotting, with a normal concentration of 150,000-400,000 per microliter of blood. They lack a nucleus, are disc-shaped, and play a crucial role in preventing uncontrolled bleeding.


Explanation:

Platelets in the Blood

Platelets are cell fragments produced from megakaryocytes in the bone marrow. They play a crucial role in blood clotting, with a normal concentration of 150,000-400,000 per microliter of blood.

Maintenance of this platelet count is essential as it helps prevent uncontrolled bleeding. Platelets lack a nucleus, are disc-shaped, and contain small vesicles.

Function: Platelets aid in forming clots by activating fibrinogen into fibrin, creating a mesh for clot formation, and stopping excess blood loss by sealing blood vessel tears.


Learn more about Platelets in Blood here:

https://brainly.com/question/20732090


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