APHY 201 - HEART QUIZ QUESTIONS WITH VERIFIED
ANSWERS
The law of the heart (Starling) accounts for: - Answers - the ventricles' ability to increase
cardiac output as venous return increases
The only vessels that provide direct access to nearly every cell in the body are the
__________. - Answers - capillaries
Cardiac output is __________. - Answers - the amount of blood pumped out of each
ventricle in one minute
The mitral and aortic valves simultaneously open during: - Answers - no part of the
cardiac cycle
The period of time that immediately follows the ejection phase of a cardiac cycle is
called: - Answers - isovolumetric relaxation
All four intercardiac valves are closed during: - Answers - isovolumetric contraction and
isovolumetric relaxation
According to the carotid baroreceptor reflex: - Answers - an increase in carotid pressure
decreases heart rate and as a result cardiac output.
For a blood pressure of 140/70 mm Hg, the mean arterial pressure is: - Answers - 93.3
mm Hg
From the perspective of blood returning from the systemic circuit, identify the correct
sequence of blood flow through the chambers of the heart. - Answers - right atrium, right
ventricle, lungs, left atrium, left ventricle
Most neural controls of blood pressure involve input from baroreceptors, which are
sensitive to __________. - Answers - changes in blood pressure
The cardiac cycle includes all of the following events EXCEPT __________. - Answers -
the number of times the heart beats in one minute
An increase in blood pressure within the venae cavae and right atrium signifies an
increase in venous return and reflexively: - Answers - increases heart rate (the
Bainbridge reflex)
When the mitral valve closes, it prevents the backflow of blood from the __________. -
Answers - left ventricle into the left atrium
ANSWERS
The law of the heart (Starling) accounts for: - Answers - the ventricles' ability to increase
cardiac output as venous return increases
The only vessels that provide direct access to nearly every cell in the body are the
__________. - Answers - capillaries
Cardiac output is __________. - Answers - the amount of blood pumped out of each
ventricle in one minute
The mitral and aortic valves simultaneously open during: - Answers - no part of the
cardiac cycle
The period of time that immediately follows the ejection phase of a cardiac cycle is
called: - Answers - isovolumetric relaxation
All four intercardiac valves are closed during: - Answers - isovolumetric contraction and
isovolumetric relaxation
According to the carotid baroreceptor reflex: - Answers - an increase in carotid pressure
decreases heart rate and as a result cardiac output.
For a blood pressure of 140/70 mm Hg, the mean arterial pressure is: - Answers - 93.3
mm Hg
From the perspective of blood returning from the systemic circuit, identify the correct
sequence of blood flow through the chambers of the heart. - Answers - right atrium, right
ventricle, lungs, left atrium, left ventricle
Most neural controls of blood pressure involve input from baroreceptors, which are
sensitive to __________. - Answers - changes in blood pressure
The cardiac cycle includes all of the following events EXCEPT __________. - Answers -
the number of times the heart beats in one minute
An increase in blood pressure within the venae cavae and right atrium signifies an
increase in venous return and reflexively: - Answers - increases heart rate (the
Bainbridge reflex)
When the mitral valve closes, it prevents the backflow of blood from the __________. -
Answers - left ventricle into the left atrium
