Cardiac Cycle

Q. During ventricular systole:

1. Oxygenated blood is pumped into the pulmonary artery and deoxygenated blood is pumped into the artery
2. Oxygenated blood is pumped into the aorta and deoxygenated blood is pumped into the pulmonary vein
3. Oxygenated blood is pumped into the pulmonary vein and deoxygenated blood is pumped into the pulmonary artery
4. Oxygenated blood is pumped into the aorta and deoxygenated blood is pumped into the pulmonary artery

Q.

The steps of the cardiac cycle in sequence after atrial systole _______.

1. Isovolumic contraction, ejection, isovolumic relaxation, passive ventricular filling, active ventricular filling.

2. Isovolumic relaxation, isovolumic contraction, ejection, passive ventricular filling, active ventricular filling.

3. Isovolumic contraction, isovolumic relaxation, ejection, passive ventricular filling, active ventricular filling.

4. Isovolumic contraction, ejection, isovolumic relaxation, active ventricular filling, passive ventricular filling.

Q. Which of the following statements define a systole?

1. Expansion of the heart chambers is called systole
2. Contraction of the heart chambers is called systole
3. Irregular beating of heart is called systole
4. None of the above

Q.

What is the duration of cardiac cycle?

Q.

What happens in the filling phase?

Q. If the systolic pressure is 120 mm Hg and diastolic pressure is 80 mm Hg, the pulse pressure is

1. 120 - 80 = 40mm Hg
2. 120 / 80 = 1.5 mm Hg
3. 120 x 80 = 9600 mm Hg
4. 120 + 80 = 200 mm Hg

Q.

What happens at the end of the outflow phase?

Q. Which of the following statements define a systole?

1. Expansion of the heart chambers is called systole
2. Contraction of the heart chambers is called systole
3. Irregular beating of heart is called systole
4. None of the above

Q.

The cardiac cycle is the sequence of events that occurs when the heart beats. In the (i)______, the heart ventricles (ii)______ and fill the heart with blood. In the (iii)_______ the ventricles (iv)________and pump the blood to the body through the arteries.

1. (i) diastole phase, (ii) relax, (iii) systole phase, (iv) contract

2. (i) systole phase, (ii) contract, (iii) diastole phase, (iv) relax

3. (i) diastole phase, (ii) contract, (iii) systole phase, (iv) relax

4. (i) systole phase, (ii) relax, (iii) diastole phase, (iv) contract

Q.

The middle layer of the heart wall is

1. Endocardium

2. Pericardium

3. Epicardium

4. Myocardium

Q.

What is a cardiac cycle?

Q.

The steps of the cardiac cycle in sequence after atrial systole _______.

1. Isovolumic contraction, isovolumic relaxation, ejection, passive ventricular filling, active ventricular filling.

2. Isovolumic relaxation, isovolumic contraction, ejection, passive ventricular filling, active ventricular filling.

3. Isovolumic contraction, ejection, isovolumic relaxation, passive ventricular filling, active ventricular filling.

4. Isovolumic contraction, ejection, isovolumic relaxation, active ventricular filling, passive ventricular filling.