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प्रश्न
With the help of neat and labelled diagrams artery and vein.
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उत्तर
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संबंधित प्रश्न
Write one structural difference between the composition of arteries and veins.
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.
During surgical operations or during accidents, the patient may be given blood from outside to save his life. What is the technical name of this process ? Briefly explain the precautions to be observed and taken in this process.
Multiple choice question. Tick (✓) the correct choice:
The blood cells which protect the body from infection are
- RBCs
- platelets
- WBCs
- all the above
Fill in the blank.
___________ carry pure blood.
What is antigens?
The figures given below show diagrammatic cross sections of three kinds of blood vessels.
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- Identify the blood vessels A, B and C.
- Name the parts labelled 1-4.
- Mention two structural differences between A and B.
- Name the kinds of blood that flow through A and through B respectively.
- In which one of the vessels referred to in (a) above does the exchange of gases actually take place?
The diagrams given below show the cross-section of two kinds of blood vessels:
(i) Identify the blood vessels A and B. In each case give a reason to support your answer.
(ii) Name the parts numbered 1 and 2.
(iii) When are the sounds “LUBB” and “DUB” produced during a heartbeat?
(iv) Name the blood vessel that
(a) begins and ends in capillaries.
(b) supplies blood to the walls of the heart.
Differentiate between an artery and a vein with reference to lumen and thickness of wall.
Name these:
Three kinds of blood vessels.
