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प्रश्न
Why is it necessary to know the blood groups before giving transfusion?
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उत्तर
During blood transfusion, it is necessary to know the blood groups before transfusion because 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.
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संबंधित प्रश्न
The diagram given below represents a section of the human heart. Answer the questions that follow :
(i) Which parts of heart are in the diastolic phase? Give a reason to support your answer.
(ii) Label the parts numbered 1 and 2 in the diagram. What type of blood flows through them?
(iii) What causes the heart sounds ‘LUBB’ and ‘DUP’?
(iv) Name the blood vessels that supply oxygenated blood to the heart muscles.
(v) Draw neat labelled diagrams of a cross section of an artery and a vein.
Angina pectoris is due to
Find out my partner.
| Group 'A' | Group 'B' |
| 1. Heart beats | a. 350 ml |
| 2. RBC | b. 7.4 |
| 3. WBC | c. 37∘C |
| 4. Blood donation | d. 72 |
| 5. Normal body Temperature | e. 50-60 lakh/mm3 |
| 6. pH of oxygenated blood | f. 5000-6000 per mm3 |
Cardiac muscles are ______.
Put a tick mark (✓) against the correct alternative in the following statement.
The only artery which carries deoxygenated blood is called,
Given alongside is a diagram of human heart showing its internal structures. Label the parts marked 1 to 6, and answer the following questions.
- Which types of blood is carried by the blood vessel marked 2?
- Name the main artery which takes the blood from heart to different parts of the body?
- Which chamber of the heart receives deoxygenated blood from the body?
- Which chamber of the heart receives oxygenated blood from the lungs?
Draw well labeled diagrams of part Artery and Superior vena cava to show the structural.
All the waste products of the body are excreted through the circulatory system.
______ WBCs are present per mm3 of blood.
The nodal tissue located in the lower left corner of right atrium is ______.
