BIO 392 Exam 3 | 156 Verified Questions And Answers
| Complete Study Updates
Left ventricular pressure is higher than pressure in the aorta during ANS ventricular systole only
Which event happens at the start of a cardiac cycle? The SA node fires. ANS The P wave develops.
What causes the aortic semilunar valve to close? ANS greater pressure in the aorta than in the left ventricle
Place these structures in the order that blood returning to the heart from the body would pass through them.
1. right ventricle
2. left atrium
3. right atrium
4. pulmonary artery
5. left ventricle
6. pulmonary vein ANS 3, 1, 4, 6, 2, 5
A semilunar valve that has the right ventricle on one side ANS pulmonary valve
In order for blood to enter the heart, ANS the atria must not only be at rest but the atrial pressure must be
lower than the veins
During ventricular ejection, ANS the ventricles are in systole.
Place these structures in the order that blood returning to the heart from the body would pass through them.
1. right ventricle
2. left ventricle
3. pulmonary vein
4. pulmonary artery
5. left atrium
6. right atrium ANS 6, 1, 4, 3, 5, 2
, Which has a longer duration of action ANS ventricular diastole
An AV valve that has three flaps ANS tricuspid valve
During exercise, which has a shorter duration of action compared to resting condition? ANS Both
ventricular diastole and ventricular systole
Also called the mitral valve ANS bicuspid valve
Increased pressure in the ventricles would close what valve(s)? ANS AV valves only
An AV valve that has three flaps ANS the right AV valve
The amount of blood left in the ventricle after it contracts ANS end-systolic volume (ESV)
Which of the following events result in the first heart sound? ANS the AV valves close
Which of the following is correct about the filling of the ventricles? ANS Most blood flows passively unto
the ventricles through open AV valves.
The volume of blood ejected from each ventricle during a contraction is called the ANS stroke volume
During exercise, the ___ will be lower ANS the end-systolic volume
has three cuplike leaflets and has the aorta on one side ANS aortic valve
Describe the pressures in the atria and ventricles that would cause the opening of the AV valves. ANS
Pressure in the atria would be greater than the pressure in the ventricles.
In which situation would the stroke volume be the greatest? ANS when venous return is increased
| Complete Study Updates
Left ventricular pressure is higher than pressure in the aorta during ANS ventricular systole only
Which event happens at the start of a cardiac cycle? The SA node fires. ANS The P wave develops.
What causes the aortic semilunar valve to close? ANS greater pressure in the aorta than in the left ventricle
Place these structures in the order that blood returning to the heart from the body would pass through them.
1. right ventricle
2. left atrium
3. right atrium
4. pulmonary artery
5. left ventricle
6. pulmonary vein ANS 3, 1, 4, 6, 2, 5
A semilunar valve that has the right ventricle on one side ANS pulmonary valve
In order for blood to enter the heart, ANS the atria must not only be at rest but the atrial pressure must be
lower than the veins
During ventricular ejection, ANS the ventricles are in systole.
Place these structures in the order that blood returning to the heart from the body would pass through them.
1. right ventricle
2. left ventricle
3. pulmonary vein
4. pulmonary artery
5. left atrium
6. right atrium ANS 6, 1, 4, 3, 5, 2
, Which has a longer duration of action ANS ventricular diastole
An AV valve that has three flaps ANS tricuspid valve
During exercise, which has a shorter duration of action compared to resting condition? ANS Both
ventricular diastole and ventricular systole
Also called the mitral valve ANS bicuspid valve
Increased pressure in the ventricles would close what valve(s)? ANS AV valves only
An AV valve that has three flaps ANS the right AV valve
The amount of blood left in the ventricle after it contracts ANS end-systolic volume (ESV)
Which of the following events result in the first heart sound? ANS the AV valves close
Which of the following is correct about the filling of the ventricles? ANS Most blood flows passively unto
the ventricles through open AV valves.
The volume of blood ejected from each ventricle during a contraction is called the ANS stroke volume
During exercise, the ___ will be lower ANS the end-systolic volume
has three cuplike leaflets and has the aorta on one side ANS aortic valve
Describe the pressures in the atria and ventricles that would cause the opening of the AV valves. ANS
Pressure in the atria would be greater than the pressure in the ventricles.
In which situation would the stroke volume be the greatest? ANS when venous return is increased
