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 |
A: | Basophils are most abundant cells of the total WBCs. |
B: | Basophils secrete histamine, serotonin and heparin. |
C: | Basophils are involved in inflammatory response. |
D: | Basophils have kidney shaped nucleus. |
E: | Basophils are agranulocytes. |
1. | A and B only | 2. | D and E only |
3. | C and E only | 4. | B and C only |
List-I (ECG) | List-II (Electrical activity of heart) | ||
(A) | P-wave | (I) | Depolarisation of ventricles |
(B) | QRS complex | (II) | End of systole |
(C) | T wave | (III) | Depolarisation of atria |
(D) | End of T wave | (IV) | Repolarisation of ventricles |
Options: | (A) | (B) | (C) | (D) |
1. | IV | I | III | II |
2. | I | IV | III | II |
3. | IV | III | I | II |
4. | III | I | IV | II |