Physiology of the Heart Quiz

What is the purpose of the cardiovascular system?

• To regulate blood pressure

• To circulate oxygen and nutrients

• To exchange gases in the lungs

• To carry waste products away from cells

Which valve is responsible for the closure of the atrioventricular valves?

• Right AV valve

• Pulmonary valve

• Left AV valve

• Aortic valve

What is the purpose of pulmonary circulation?

• To circulate blood from the right ventricle to the lungs

• To provide functional blood supply to all body tissues

• To carry oxygenated blood to body cells

• To obtain oxygen and nutrients from the mother

During which phase of the cardiac cycle does ventricular systole occur?

• Atrial systole

• Ventricular systole

• Complete cardiac diastole

• None of the above

What causes the first heart sound (Lubb)?

• Closure of AV valves

• Closure of aortic and pulmonary valves

• Force of blood on arterial wall

• Ejection of blood from ventricular contraction

What is the normal reading for systolic pressure?

• 120mmHg

• 80mmHg

• 60-80 beats per minute

• None of the above

What is the purpose of the pulse?

• To regulate blood pressure

• To circulate oxygen and nutrients

• To measure arterial blood pressure

• To indicate the rhythmic expansion of an artery

What is the normal resting pulse rate for a healthy adult?

• 120mmHg

• 80mmHg

• 60-80 beats per minute

• None of the above

Where can the pulse be felt?

• In the lungs

• In the gastrointestinal tract

• In the kidneys

• In places where an artery is near the surface of the body

What is the purpose of pulmonary circulation?

• To circulate blood from the right ventricle to the lungs

• To provide functional blood supply to all body tissues

• To carry oxygenated blood to body cells

• To obtain oxygen and nutrients from the mother