The following is the diagrammatic representation of standard ECG. Identify the correct statement :

1. P is caused by atrial repolarization

2. Q, when present, always shows myocardial ischemia

3. QRS complex is due to time taken by impulse from SA node to AV node

4. T is caused by ventricular repolarization

In the given section of the human heart which part ensures that atria contact prior to the ventricles ?

1. A

2. B

3. C

4. D

The second largest constituent of plasma is:

Factors that can initiate coagulation of blood can be released by:
I. Platelets in the blood
II. Tissues at the site of injury
III. Liver
1. I and II only
2. I and III only
3. II and III only
4. I, II and III

Interstitial fluid resembles plasma in the same distribution of:

A tricuspid valve will prevent of blood flow from:
1 Right atrium to right ventricle
2. Right ventricle to right atrium
3. Left atrium to left ventricle
4. Left ventricle to left atrium

Purkinje fibers are:

When the stroke volume of the ventricles is much less than the expected values, the heart is said to be:

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

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