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प्रश्न
What stops blood from flowing backward through the heart?
उत्तर
The valves present in the right and the left atrium prevent the blood from flowing backward into the atria.
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संबंधित प्रश्न
Write the function of valves present in between atria and ventricles.
Put a tick mark (✓) against the correct alternative in the following statement:
Function of WBCs is to
- Transport oxygen
- Help in clotting of blood
- Provide immunity
- Provide storage of food.
Differentiate between the following pair of terms:
Platelets and WBC.
Name the following:
Different blood groups
Find the odd one out, giving reason:
Arteries, capillaries, blood, veins
Name the Following
The blood vessel that begins and ends in capillaries.
Give scientific reason.
Arteries are thicker than veins.
Why do veins have thin walls as compared to arteries?
With the help of neat and labelled diagrams artery and vein.
______ carry blood to an organ and break up into ______ ending in capillaries.
