5 Questions
Where are platelets produced and destroyed in the body?
Produced in bone marrow, destroyed in spleen
What is the approximate number of platelets in 1 mm of blood?
200 to 400 thousand
What is the condition called when the number of RBCs is more than normal?
Polycythemia
Which protein helps in blood-clotting with the help of clotting factors?
Fibrinogen
What happens if the process of blood-clotting delays due to the absence of blood-clotting chemicals?
Haemophilia occurs
Study Notes
Platelet Production and Destruction
- Platelets are produced in the bone marrow through the process of thrombopoiesis.
- Old or damaged platelets are destroyed by the spleen.
Platelet Count
- The approximate number of platelets in 1 mm of blood is 200,000 to 400,000.
Blood Disorders
- The condition where the number of red blood cells (RBCs) is more than normal is called polycythemia.
Blood Clotting
- The protein that helps in blood-clotting with the help of clotting factors is fibrinogen.
- Fibrinogen is converted to fibrin, which forms a mesh that traps blood cells and platelets, creating a blood clot.
Blood Clotting Disorders
- If the process of blood-clotting delays due to the absence of blood-clotting chemicals, uncontrolled bleeding may occur.
Test your knowledge about platelets with this quiz. Learn about their structure, function, production, and related blood disorders.
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