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Q. No.Given below is the ECG of a normal human. Which one of its components is correctly interpreted below?
1.
Peak P- Initiation of left atrial contraction only
2.
Complex QRS- One complete pulse
3.
Peak T- Initiation of total cardiac contraction
4.
Peak P and Peak R together- systolic and diastolic blood pressures
Subtopic: ECG & Coronary Artery Disease |
77%
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Which one of the following human organs is often called the "graveyard" of RBCs?
1. Spleen
2. Liver
3. Gall bladder
4. Kidney
Subtopic: Blood: General Description & RBC |
95%
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Subtopic: Blood: General Description & RBC: Part 1 | Blood: General Description & RBC |
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Match the items given in Column I with those in Column II and select the correct option given below:
| Column – I | Column – II | ||
| (a) | Tricuspid valve | (i) | Between left atrium and left ventricle |
| (b) | Bicuspid valve | (ii) | Between right ventricle and pulmonary artery |
| (c) | Semilunar valve | (iii) | Between right atrium and right ventricle |
Codes:
| (a) | (b) | (c) | |
| 1. | (i) | (ii) | (iii) |
| 2. | (i) | (iii) | (ii) |
| 3. | (iii) | (i) | (ii) |
| 4. | (ii) | (i) | (iii) |
Subtopic: Human Heart: Gross Anatomy | Human Heart: Cardiac Cycle |
84%
From NCERT
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Most cases of CAD result from:
| 1. | Angina pectoris | 2. | Myocardial infarction |
| 3. | Atherosclerosis | 4. | Heart failure |
Subtopic: ECG & Coronary Artery Disease |
81%
From NCERT
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Which among the following is correct during each cardiac cycle?
| 1. | The volume of blood pumped by right and left ventricles is same |
| 2. | The volume of blood pumped by right and left ventricles is different |
| 3. | The volume of blood received by right and left atria is different |
| 4. | The volume of blood received by pulmonary arteries and aorta is different |
Subtopic: Human Heart: Double Circulation |
73%
From NCERT
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Two atria are present in the heart of all the following vertebrates except:
| 1. | Fishes | 2. | Amphibians |
| 3. | Crocodiles | 4. | Birds |
Subtopic: Blood: General Description & RBC |
84%
From NCERT
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Match each item in Column I with one in Column II and select the correct answer from the codes given:
| Column I | Column II | ||
| A. | Heart failure | a. | Lowered ejection fraction of a ventricle |
| B. | Heart attack | b. | Damage to the cardiac muscle |
| C. | Heart block | c. | Abnormal delay in conduction in nodal tissue |
| D. | Cardiac arrest | d. | Sudden stoppage of the heart |
Codes
| A | B | C | D | |
| 1. | a | b | c | d |
| 2. | b | a | c | d |
| 3. | b | a | d | c |
| 4. | a | d | b | c |
Subtopic: ECG & Coronary Artery Disease |
78%
From NCERT
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Cardiac activity could be moderated by the autonomic nervous system. Tick the correct answer:
| 1. | The parasympathetic system stimulates heart rate and stroke volume |
| 2. | The sympathetic system stimulates heart rate and stroke volume |
| 3. | The parasympathetic system stimulates heart rate but decreases stroke volume |
| 4. | The sympathetic system stimulates heart rate but decreases stroke volume |
Subtopic: Regulation of Cardiac Activity |
80%
From NCERT
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State of the heart when it is not pumping blood effectively to meet needs of body is called as:
| 1. Heart attack | 2. Heart block |
| 3. Cardiac arrest | 4. Heart failure |
Subtopic: ECG & Coronary Artery Disease |
85%
From NCERT
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