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Chapter IP10 Quizzes
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cardiovascular
Cardiovascular System: Cardiac Cycle
Cardiovascular System: Cardiac Cycle
Interactive Physiology
® Quiz: Cardiovascular System: Cardiac Cycle
This activity contains 10 questions.
Ventricular filling occurs during what phase of the cardiac cycle?
Mid-to-late ventricular diastole
Systole
Early diastole
During what phase of the cardiac cycle does the ventricle contract, raising intraventricular pressure and, thus, closing the AV valves?
Isovolumetric relaxation
Isovolumetric contraction
Ventricular filling
Ventricular ejection
During this phase of the cardiac cycle, the pressure in the ventricle increases and forces the semilunar valves open.
Isovolumetric relaxation
Ventricular ejection
Ventricular filling
Isovolumetric contraction
What pressure difference causes the aortic semilunar valves to close?
Pressure that is greater in the left ventricle than in the left atrium
Pressure that is greater in the left atrium than in the left ventricle
Pressure in the aorta that is greater than left ventricular pressure
Pressure in the left ventricle that is greater than that in the aorta
What pressure difference causes the AV valves to open?
When pressure in the atrium is greater than in the ventricle
When pressure in the ventricle is greater than in the atrium
State which valves are open or closed during isovolumetric relaxation.
AV valves open; semilunar valves closed
AV valves closed; semilunar valves closed
AV valves closed; semilunar valve open
AV valves open, semilunar valves open
During the cardiac cycle, heart valves open and close because of:
differences in blood flow on their two sides.
differences in blood pressure on their two sides.
electrical impulses.
The tricuspid valve directs blood flow in which direction?
From the right ventricle to the pulmonary trunk
From the left ventricle to the aorta
From the left atrium to the left venticle
From the right atrium to the right ventricle
The bicuspid valve directs blood flow in which direction?
From the right atrium to the right ventricle
From the left atrium to the left ventricle
From the left ventricle to the aorta
From the right ventricle to the pulmonary trunk
The filling of the ventricles is caused mainly by:
atrial contraction.
passive flow of blood through atria into ventricles.
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