On a surface ECG, the end of ventricular systole is marked by:

(1) The end of the QRS complex

(2) The beginning of T wave

(3) The end of T wave

(4) The beginning of P wave

 

Subtopic:  ECG & Coronary Artery Disease |
 53%
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A normal blood pressure reading in a healthy adult human being would be:
I. 116/76 mm Hg
II. 150/80 mm Hg
III. 120/ 94 mm Hg
1. Only I
2. Both I and II
3. Both I and III
4. I, II and III

Subtopic:  Atherosclerosis, Hypertension & Ventricular Fibrillation |
 55%
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During the cardiac cycle, the AV valves close during:
1. Early ventricular systole
2. Late ventricular systole
3. Early ventricular diastole
4. Late ventricular diastole

Subtopic:  Human Heart: Cardiac Cycle |
 78%
From NCERT
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A chronic condition in which the heart doesn’t pump blood as well as it should is called as:
1. Angina pectoris

2. Heart attack

3. Heart failure

4. Heart block

Subtopic:  Atherosclerosis, Hypertension & Ventricular Fibrillation |
 80%
From NCERT
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The cells that produce the smallest formed elements of the blood are called
1. erythroblasts

2. megakaryocytes

3. myeloblasts

4. thrombocytes

Subtopic:  Blood: General Description & RBC: Part 1 | Blood: General Description & RBC |
 70%
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Persons with Rh ____________ blood never exhibit Rh ____________.
1. negative; incompatibility
2. negative; antibodies
3. positive; surface antigens
4. positive; antibodies

Subtopic:  Blood: Blood Group |
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What happens during ventricular diastole?
1. both ventricles fill with blood
2. both semilunar valves remain open
3. both AV valves remain closed
4. both ventricles contract

Subtopic:  Human Heart: Cardiac Cycle |
 63%
From NCERT
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Which part of the specialized conducting system of the human heart is auto-excitable?
I. SA Node II. AV node
III. AV bundle IV. Purkinje fibers
1. I and II only
2. I, II and III only
3. II, III and IV only
4. I, II, III and IV

Subtopic:  Human Heart: Double Circulation |
 57%
From NCERT
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Which of the following substances, if introduced into the blood stream, would cause coagulation of blood at the site of its introduction -

1. Thromboplastin

2. Fibrinogen

3. Heparin

4. Prothrombin

Subtopic:  Blood: Blood Clotting |

Sorry!! currently, the explanation for the question is not provided. If you need further help, please email at support@neetprep.com with subject: Explanation Missing for Question Id: 151276

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What is true about the cell shown in the given diagram?

              

   1. It is rarest WBC found in the blood.

   2. It is the largest WBC

   3. Its number is increased in acute bacterial infections

   4. It is involved in transport of blood gases

Subtopic:  Blood: White Blood Cells |
 54%
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