Transport System1

What happens during Atrial systole and ventricular diastole?

• Both atria contract and ventricles relax

• Both atria and ventricles contract

• Both ventricles contract and atria relax

• One atria contract and ventricles relax

Answer explanation

During Atrial systole, both atria contract to push blood into the ventricles, while ventricular diastole allows the ventricles to relax and fill with blood.

Where does blood from the right atrium pump into during Atrial systole and ventricular diastole?

• Pulmonary artery

• Left ventricle

• Aorta

• Right ventricle

Answer explanation

During Atrial systole and ventricular diastole, blood from the right atrium pumps into the Right ventricle.

What causes the first heart sound 'lub'?

• Semilunar valve closing

• AV valves opening

• Semilunar valve opening

• AV valves closing

Answer explanation

The first heart sound 'lub' is caused by the closing of the AV valves.

When do both ventricles contract?

• During Atrial systole and ventricular diastole

• During Ventricular systole and atrial diastole

• During Atrial systole and atrial diastole

• During Atrial and ventricular diastole

Answer explanation

During Ventricular systole, both ventricles contract to pump blood out of the heart, while the atria are in diastole, filling with blood for the next cycle.

Where does deoxygenated blood from the right ventricle pump into?

• Left atrium

• Pulmonary artery

• Aorta

• Right atrium

Answer explanation

Deoxygenated blood from the right ventricle pumps into the Pulmonary artery, which carries it to the lungs for oxygenation.

What happens during Ventricular systole and atrial diastole?

• Both atria and ventricles contract

• Both atria contract and ventricles relax

• Both ventricles contract and atria relax

• Both atria contract and ventricles relax

Answer explanation

During Ventricular systole and atrial diastole, both ventricles contract to pump blood out to the body, while the atria relax to receive blood from the veins.

What causes the second heart sound 'dup'?

• Semilunar valve opening

• Semilunar valve closing

• AV valves opening

• AV valves closing

Answer explanation

The second heart sound 'dup' is caused by the closure of the semilunar valves.

When do both atria and ventricles relax?

• During Atrial and ventricular diastole

• During Ventricular systole and atrial diastole

• During Atrial systole and atrial diastole

• During Atrial systole and ventricular diastole

Answer explanation

Both atria and ventricles relax during Atrial and ventricular diastole, allowing the chambers to fill with blood before the next contraction.

Where does oxygenated blood from the left ventricle pump into?

• Left atrium

• Pulmonary artery

• Aorta

• Right atrium

Answer explanation

Oxygenated blood from the left ventricle pumps into the Aorta.

What happens during Atrial and ventricular diastole?

• Both atria and ventricles contract

• Both atria contract and ventricles relax

• Both ventricles contract and atria relax

• Both atria contract and one

  ventricles relax

Answer explanation

During Atrial and ventricular diastole, both atria contract to fill the ventricles with blood, while the ventricles relax to receive the blood from the atria.