The plasma of a person has both anti-A and anti-B antibodies. The blood type of this person will be:
1. Type O
2. Type AB
3. Type A
4. Type B
The end of systole is marked on the ECG by:
1. Beginning of P wave
2. End of the Q wave
3. End of the T wave
4. Beginning of S wave
| 1. | an Rh positive mother is carrying an Rh negative foetus |
| 2. | an Rh negative mother is carrying an Rh positive foetus |
| 3. | an Rh positive mother is carrying an Rh positive foetus |
| 4. | an Rh negative mother is carrying an Rh negative foetus |
1. 120/100 mm Hg
2. 110/70 mm Hg
3. 170/80 mm Hg
4. 150/95 mm Hg
Consider the given two statements:
Assertion: SA node acts as the normal pacemaker of the human heart.
Reason: SA node is located in the wall of the right atrium.
1. Assertion is true but Reason is false
2. Both Assertion and Reason are true and the Reason correctly explains the Assertion
3. Both Assertion and Reason are true but the Reason does not correctly explain the Assertion
4. Assertion is false but Reason is true
| 1. | Heart failure | The state of heart when it is not pumping blood effectively enough to meet the needs of the body. |
| 2. | Heart attack | The heart muscle is suddenly damaged by an inadequate blood supply. |
| 3. | Angina pectoris | Acute chest pain when excess oxygen is reaching the heart muscle due to vasodilation. |
| 4. | Cardiac arrest | The heart abruptly stops beating. |
1. The P-wave represents the electrical excitation of the atria, which leads to the contraction of both the atria.
2. The ventricular contraction starts shortly after S wave and marks the beginning of the systole.
3. The end of the T-wave marks the end of systole.
4. Since the ECGs obtained from different individuals have roughly the same shape for a given lead configuration, any deviation from this shape indicates a possible abnormality or disease.
Consider the two statements:
Statement I: If the duration of a cardiac cycle is 0.8 seconds, the number of heart beats heard through a stethoscope and the number of cardiac cycles per minute will be 75.
Statement II: Neural signals through the sympathetic nerves can increase the rate of heart beat, the strength of ventricular contraction and thereby the cardiac output.
1. Statement I is correct; Statement II is incorrect
2. Statement I is incorrect; Statement II is incorrect
3. Statement I is correct; Statement II is correct
4. Statement I is incorrect; Statement II is correct
I: The largest constituents of plasma are plasma proteins.
II: If kidneys receive 1200 ml blood per minute, then renal plasma flow is 660 ml per minute.
III: Erythroblastosis foetalis can be avoided by administering anti-Rh antibodies to the new born immediately after the delivery.
IV: Calcium ions play a very important role in clotting.
V: Exchange of nutrients, gases, etc., between the blood and the cells always occur through interstitial fluid.
VI: All terrestrial vertebrates have at least a three chambered heart.
1. 1
2. 2
3. 3
4. 4
Assertion: Group ‘O’ blood is ‘universal donor’ and can be donated to persons with any other blood group.
Reason: Persons with ‘AB’ group can accept blood from persons with AB as well as the other groups of blood.
1. Assertion is true but Reason is false
2. Both Assertion and Reason are true and the Reason correctly explains the Assertion
3. Both Assertion and Reason are true but the Reason does not correctly explain the Assertion
4. Assertion is false but Reason is true
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