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Course MSCI 522_Fall 21 - Principles of Physiology II
Lesson Cardiac Cycle
Student email
Cardiac cycle
What happens during the periods of diastole and systole?
Diastole Systole
Systole Diastole
How much do you already know about the events of the cardiac cycle? Label the Wiggers' d
Aortic pressure Atrial pressure ECG
Ventricular pressure Ventricular volume
,In the Wiggers' diagram above, what component of the
cardiac cycle is indicated by the blue background?
Diastole
Systole
At rest, systole lasts approximately 0.27 s. What then, is
the duration of a cardiac cycle?
0.5 s
0.8 s
1.1 s
What is the cardiac cycle?
The cardiac cycle is the series of steps that go from the beginning of one heartbeat to the
What events make up each cardiac cycle?
Events that make up each cardiac cycle include opening and closing of heart valves, change
pressure, changes in blood ow, and changes in blood volume. There are also mechanical
occur to make the heart contract and relax.
To increase oxygen delivery to working muscles during exercise, heart rate increases.
Barry's heart rate has increased from 60 beats per minute (bpm) at rest, to 120 bpm
, Label the following components of the heart, to indicate where the four heart valves are loc
structures.
Aorta Aorta Pulmonary artery
Aortic valve
Left atrium
Right atrium
Left ventricle
Pulmonary artery
Mitral valve
Pulmonary valve
Pulmonary valve
Right atrium
Right ventricle
Tricuspid valve
Tricuspid valve
Right ventricle
What does the characteristic "lub" heart sound indicate?
Closing of the aortic and pulmonary valves.
Closing of the mitral and tricuspid valves.
Opening of the aortic and pulmonary valves.
Opening of the mitral and tricuspid valves.
What does the characteristic "dub" sound indicate?
Closing of the aortic and pulmonary valves.
Course MSCI 522_Fall 21 - Principles of Physiology II
Lesson Cardiac Cycle
Student email
Cardiac cycle
What happens during the periods of diastole and systole?
Diastole Systole
Systole Diastole
How much do you already know about the events of the cardiac cycle? Label the Wiggers' d
Aortic pressure Atrial pressure ECG
Ventricular pressure Ventricular volume
,In the Wiggers' diagram above, what component of the
cardiac cycle is indicated by the blue background?
Diastole
Systole
At rest, systole lasts approximately 0.27 s. What then, is
the duration of a cardiac cycle?
0.5 s
0.8 s
1.1 s
What is the cardiac cycle?
The cardiac cycle is the series of steps that go from the beginning of one heartbeat to the
What events make up each cardiac cycle?
Events that make up each cardiac cycle include opening and closing of heart valves, change
pressure, changes in blood ow, and changes in blood volume. There are also mechanical
occur to make the heart contract and relax.
To increase oxygen delivery to working muscles during exercise, heart rate increases.
Barry's heart rate has increased from 60 beats per minute (bpm) at rest, to 120 bpm
, Label the following components of the heart, to indicate where the four heart valves are loc
structures.
Aorta Aorta Pulmonary artery
Aortic valve
Left atrium
Right atrium
Left ventricle
Pulmonary artery
Mitral valve
Pulmonary valve
Pulmonary valve
Right atrium
Right ventricle
Tricuspid valve
Tricuspid valve
Right ventricle
What does the characteristic "lub" heart sound indicate?
Closing of the aortic and pulmonary valves.
Closing of the mitral and tricuspid valves.
Opening of the aortic and pulmonary valves.
Opening of the mitral and tricuspid valves.
What does the characteristic "dub" sound indicate?
Closing of the aortic and pulmonary valves.
