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 |
Consider the given two statements:
Assertion (A): | SA node acts as the normal pacemaker of the human heart. |
Reason (R): | SA node is located in the wall of the right atrium. |
1. | (A) is True but (R) is False |
2. | Both (A) and (R) are True and (R) correctly explains (A) |
3. | Both (A) and (R) are True but (R) does not correctly explain (A) |
4. | (A) is False but (R) 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. |
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
List I | List II | ||
A. | P-wave | I. | Beginning of systole |
B. | Q-wave | II. | Repolarisation of ventricles |
C. | QRS complex | III. | Depolarisation of atria |
D. | T-wave | IV. | Depolarisation of ventricles |
Options: | A | B | C | D |
1. | I | II | III | IV |
2. | III | I | IV | II |
3. | IV | III | II | I |
4. | II | IV | I | II |