Human Circulatory System

Tricuspid valve is present between

• Left atrium and Left ventricle

• Right atrium and Right ventricle

• Left atrium and Right atrium

• Right ventricle and Left ventricle

Blood is poured into the right atrium through

• vena cava

• Pulmonary vein

• aorta

• Pulmonary artery

Bicuspid valve and tricuspid valves are closed during

• Ventricular systole

• Ventricular diastole

• Atrial systole

• Late joint diastole

Pulse is the alternate expansion and recoil of the wall of the artery during

• Ventricular systole

• Ventricular diastole

• Auricular diastole

• Auricular systole

The second DUBB is produced at the beginning of

• Ventricular diastole

• Ventricular systole

• Auricular systole

• Auricular diastole

The first heart sound is produced when

• Diastole begins

• Semilunar valves close quickly

• Interventricular pressure increases

• Bicuspid and tricuspid valves close quickly

Left atrium receives oxygenated blood through

• Coronary artery

• Aorta

• Pulmonary artery

• Pulmonary vein

Which of the following has the thickest wall?

• Right ventricle

• Left ventricle

• Right auricle

• Left auricle

In human beings, the duration of cardiac cycle is

• 0.08 seconds

• 0.5 seconds

• 0.8 seconds

• 8.0 seconds

Which of the following carries deoxygenated blood?

• pulmonary vein

• pulmonary artery

• aorta

• coronary artery