During a cardiac cycle:
1. About 70 ml of blood is pumped by the two ventricles
2. The left atrium and the left ventricle contract simultaneously
3. More blood is pumped into the systemic than in pulmonary circulation
4. The atria contract prior to the ventricles

Erythroblastosis fetalis can be prevented during a second pregnancy in a Rh negative mother who is likely to carry a Rh positive fetus by:

When the heart beats, the familiar lub-dub
sound occurs as the valves of the heart _____.

1. open

2. close

3. expand

4. contract

Which of the following statements is not correct about
ECG?

1. P wave represents atrial depolarisation.

2. QRS wave initiates ventricular contraction.

3. The end of T wave marks the end of ventricular
systole.

4. Q wave marks the beginning of atrial systole.

Hemolytic disease of the newborn (HDN) may occur in the feotus of a second pregnancy if:

Which of the following sequences best represents the pathway of an action potential through the Heart's conduction system?

(i) Sino-atrial (SA) node

(ii) Purkinje fibres

(iii) Bundle of His

(iv) Atrio-ventricular (AV) node

(v) Right and left bundle branches

1. (i),(iv),(iii),(ii),(v)

2. (iv), (i),(iii),(v),(ii)

3. (iii),(iv),(i),(ii),(v)

4. (i),(iv),(iii),(v),(ii)

Select the option having all the correct characteristics:

	Structure	Percentage	Function
1.		0.3-0.5	Phagocytic
2.		0.5-1.0	Secrete histamine
3.		30-40	Defense against parasites
4.		30-40	Allergic reactions

Match the vessels in Column-I with appropriate organs in Column-II:

Thrombokinase performs a specific function in human body

Choose the correct option

T-wave in electrocardiogram represents

1. The return of ventricles from excited to normal state.

2. Depolarisation of ventricles from normal to excited state.

3. Onset of atrial systole.

4. Onset of atrial diastole.