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Q. No.During the coagulation of blood:
1.
Fibrinogen is activated by the enzyme plasmin
2.
Prothrombin is activated by the enzyme fibrinolysin
3.
The basophils release certain factors which activate the mechanism of coagulation
4.
Calcium ions play a very important role
Subtopic: Blood: Blood Clotting |
89%
Level 1: 80%+
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Given below are two statements:
In the light of the above statements, choose the most appropriate answer from the options given below:
| Statement I: | The coagulum is formed of network of threads called thrombins. |
| Statement II: | Spleen is the graveyard of erythrocytes. |
| 1. | Statement I is incorrect but Statement II is correct. |
| 2. | Both Statement I and Statement II are correct. |
| 3. | Both Statement I and Statement II are incorrect. |
| 4. | Statement I is correct but Statement II is incorrect. |
Subtopic: Blood: Blood Clotting | Blood: General Description & RBC |
68%
Level 2: 60%+
NEET - 2022
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Which one of the following statements is correct?
| 1. | Increased ventricular pressure causes closing of the semilunar valves. |
| 2. | The atrio-ventricular node (AVN) generates an action potential to stimulate atrial contraction. |
| 3. | The tricuspid and the bicuspid valves open due to the pressure exerted by the simultaneous contraction of the atria. |
| 4. | Blood moves freely from atrium to the ventricle during joint diastole. |
Subtopic: Human Heart: Cardiac Cycle |
51%
Level 3: 35%-60%
NEET - 2022
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Inadequate supply of oxygen to heart muscles leads to a symptom of acute chest pain. This disorder of the circulatory system is identified as:
| 1. | Angina pectoris | 2. | Cardiac arrest |
| 3. | Heart failure | 4. | Coronary Heart Disease |
Subtopic: DISORDERS OF CIRCULATORY SYSTEM |
86%
Level 1: 80%+
NEET - 2022
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Which of the following would occur if an impulse from the SA node were blocked before it reaches the AV node?
1. The heart would not contract
2. Only the atria would contract
3. Only the ventricle would contract
4. Blood would travel only to the pulmonary system
1. The heart would not contract
2. Only the atria would contract
3. Only the ventricle would contract
4. Blood would travel only to the pulmonary system
Subtopic: Rhythmic Excitation of Human Heart: Part 1 | Rhythmic Excitation of Human Heart: Part 2 |
65%
Level 2: 60%+
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| Assertion (A): | In ECG by counting the number of QRS complexes, that occur in a given time period, one can determine the heart beat rate of an individual. |
| Reason (R): | The QRS complex represents the depolarization of the ventricles which initiate the ventricular contraction. |
In light of the two statements given above, mark the correct option:
| 1. | Both A & R are true and R is the correct explanation of A. |
| 2. | Both A & R are true but R is not the correct explanation of A |
| 3. | A is true statement but R is false |
| 4. | Both A and R are false statements |
Subtopic: ECG & Coronary Artery Disease |
69%
Level 2: 60%+
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The relationship between blood pressure (bp), cardiac output (co), and peripheral resistance (pr) can be expressed as bp = co ´ pr. All of the following changes would result in an increase in blood pressure except.
1. increase in the stroke volume
2. increase in the heart rate
3. increase in the duration of ventricle diastole
4. contraction of the arteriolar smooth muscle.
1. increase in the stroke volume
2. increase in the heart rate
3. increase in the duration of ventricle diastole
4. contraction of the arteriolar smooth muscle.
Subtopic: Human Heart: Cardiac Cycle |
57%
Level 3: 35%-60%
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A woman is tested for hemoglobin level in her blood and reports showed that the level of Hg is 9 gm in 100 ml of blood. It indicates:
| 1. | Normal level |
| 2. | More than normal level |
| 3. | Less than normal level |
| 4. | Very less than normal level |
Subtopic: Blood: General Description & RBC |
82%
Level 1: 80%+
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If your blood group is not agglutinated with monoclonal anti-A and anti-B while testing in a lab to determine your blood group, which of the following reasons is correct?
| 1. | No antigens - A & B is present |
| 2. | Only antigen - A is present |
| 3. | Antigen - B is present |
| 4. | Both antigens - A & B are present |
Subtopic: Blood: White Blood Cells | Blood: Blood Group (A,B,O) |
64%
Level 2: 60%+
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Which of the following combination is correctly related to ECG?
A. It is a graphical representation of electric activity
B. Each peak is identified with a letter
C. Each peak is identified with numbers
D. Multiple leads are attached to the chest region
E. Single lead is attached to the chest region
Choose the correct answer from the options given below:
1. A & E only
2. B, C, D only
3. A, B, D only
4. A only
A. It is a graphical representation of electric activity
B. Each peak is identified with a letter
C. Each peak is identified with numbers
D. Multiple leads are attached to the chest region
E. Single lead is attached to the chest region
Choose the correct answer from the options given below:
1. A & E only
2. B, C, D only
3. A, B, D only
4. A only
Subtopic: ECG & Coronary Artery Disease |
87%
Level 1: 80%+
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