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प्रश्न
Give reason for the following:
The blood groups of both the donor and recipient must be known before transfusing blood.
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उत्तर
During blood transfusion it is important that the blood groups of the donor and the recipient
are compatible. In case of an incompatible blood transfusion, the recipient develops
antibodies that attack the antigens present on the RBCs of the donor causing the blood cells
to clump together which may result in death. The examination of Rh factor is also necessary
for the blood transfusion. Therefore, the blood groups of both the donor and recipient must
be known before transfusing blood.
संबंधित प्रश्न
Why is blood needed by all the parts of a body?
the Biological/technical term for The vein which drains the blood from the intestine to the liver.
Which organ acts as a pump in the circulatory system?
The table below is designed to indicate the transport of certain substance in our body. Fill in the
blanks with suitable answers.
| Substance | From | To |
| Lungs | Whole body | |
| Carbon dioxide | ||
| Urea | ||
| Digested carbohydrates |
Intestines | |
| Target organs |
Find the odd one out.
Why does the left ventricle possess a thicker wall than the right ventricle?
Fill in the blank:
In human body, heart is located on the _____ side of the chest cavity.
Define the Veins.
Given below is the simplified pathway of the circulatory system:
(i) Name the blood vessels marked 1 to 8.
(ii) Name the chamber of the heart which:
(a) Receives blood from ‘1’.
(b) Pumps blood into blood vessel ‘8’.
(iii) Mention two structural differences between blood vessels ‘7’ and ‘2’.
Circulation is carried out by ______ in higher animals.
