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प्रश्न
While learning to ride a bicycle Boojho lost his balance and fell. He got bruises on his knees and it started bleeding. However, the bleeding stopped after some time.
- Why did the bleeding stop?
- What would be the colour of the wounded area and why?
- Which type of blood cells are responsible for clotting of blood?
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उत्तर
- Bleeding stops due to coagulation/clotting of blood.
- The colour of wounded area would initially be dark red due to the clotting of blood.
- Platelets are responsible for the clotting of blood.
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संबंधित प्रश्न
What are the various components of blood? State their functions.
Which is the correct sequence of blood flow?
Why is the colour of the blood-red?
The volume of blood in human adults is ______.
Crab has blue blood.
What prevents the backflow of blood inside the heart during contraction?
The blood leaving the tissues becomes richer in
Veins have valves that allow blood to flow only in one direction. Arteries do not have valves. Yet the blood flows in one direction only. Can you explain why?
What is the special feature present in a human heart which does not allow mixing of blood when oxygen-rich and carbon dioxide-rich blood reach the heart?
Name the only artery that carries carbon dioxide-rich blood.
