Question 1

Use the following answer code to compare the magnitude of the items in question.
a.A is greater than b.b.B is greater than a.c.A and B are equal or nearly equal.
-a.Rate of depolarization of the SA node during parasympathetic stimulation
B.Rate of depolarization of the SA node during sympathetic stimulation

Accepted Answer

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Question 2

Match heart characteristic with correct anatomical structure.
a.tricuspid valve
b.myocardium
c.aortic semilunar valve
d.AV node
e.sinoatrial node
-Contains Purkinje fibers

Accepted Answer

The answer of Match heart characteristic with correct anatomical structure.
a.tricuspid...

Question 3

Use the following answer code to compare the magnitude of the items in question.
a.A is greater than b.b.B is greater than a.c.A and B are equal or nearly equal.
-a.Stroke volume when end-diastolic volume equals 130 ml
B.Stroke volume when end-diastolic volume equals 160 ml

Accepted Answer

The answer of Use the following answer code to compare...

Question 4

Use the following answer code to compare the magnitude of the items in question.
a.A is greater than b.b.B is greater than a.c.A and B are equal or nearly equal.
-a.Duration of the refractory period in cardiac muscle
B.Duration of the refractory period in skeletal muscle

Accepted Answer

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Question 5

Use the following answer code to compare the magnitude of the items in question.
a.A is greater than b.b.B is greater than a.c.A and B are equal or nearly equal.
-a.Volume of blood in the ventricles at the onset of isovolumetric ventricular contraction
B.Volume of blood in the ventricles at the end of isovolumetric ventricular contraction

Accepted Answer

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Question 6

Use the following answer code to compare the magnitude of the items in question.
a.A is greater than b.b.B is greater than a.c.A and B are equal or nearly equal.
-a.Rate of ventricular filling in early diastole
B.Rate of ventricular filling in late diastole

Accepted Answer

The answer of Use the following answer code to compare...

Question 7

Use the following answer code to compare the magnitude of the items in question.
a.A is greater than b.b.B is greater than a.c.A and B are equal or nearly equal.
-a.Duration of diastole at resting heart rate
B.Duration of diastole at rapid heart rate during exercise

Accepted Answer

The answer of Use the following answer code to compare...

Question 8

Match heart characteristic with correct anatomical structure.
a.tricuspid valve
b.myocardium
c.aortic semilunar valve
d.AV node
e.sinoatrial node
-It is prevented from opening into the right atrium by papillary muscle action

Accepted Answer

The answer of Match heart characteristic with correct anatomical structure.
a.tricuspid...

Question 9

Match heart characteristic with correct anatomical structure.
a.tricuspid valve
b.myocardium
c.aortic semilunar valve
d.AV node
e.sinoatrial node
-This overcomes the afterload of the circuits

Accepted Answer

The answer of Match heart characteristic with correct anatomical structure.
a.tricuspid...

Question 10

Use the following answer code to compare the magnitude of the items in question.
a.A is greater than b.b.B is greater than a.c.A and B are equal or nearly equal.
-a.Velocity of impulse through the bundle of His and Purkinje system
B.Velocity of impulse conduction through the AV node

Accepted Answer

The answer of Use the following answer code to compare...

Question 11

Use the following answer code to compare the magnitude of the items in question.
a.A is greater than b.b.B is greater than a.c.A and B are equal or nearly equal.
-a.Duration of the refractory period in cardiac muscle
B.Duration of contraction in cardiac muscle

Accepted Answer

The answer of Use the following answer code to compare...

Question 12

Use the following answer code to compare the magnitude of the items in question.
a.A is greater than b.b.B is greater than a.c.A and B are equal or nearly equal.
-a.Duration of systole at resting heart rate
B.Duration of systole at rapid heart rate during exercise

Accepted Answer

The answer of Use the following answer code to compare...

Question 13

Use the following answer code to compare the magnitude of the items in question.
a.A is greater than b.b.B is greater than a.c.A and B are equal or nearly equal.
-a.Coronary blood flow during systole
B.Coronary blood flow during diastole

Accepted Answer

The answer of Use the following answer code to compare...

Question 14

Match heart characteristic with correct anatomical structure.
a.tricuspid valve
b.myocardium
c.aortic semilunar valve
d.AV node
e.sinoatrial node
-Is much thicker on the left side

Accepted Answer

The answer of Match heart characteristic with correct anatomical structure.
a.tricuspid...

Question 15

Use the following answer code to compare the magnitude of the items in question.
a.A is greater than b.b.B is greater than a.c.A and B are equal or nearly equal.
-a.Volume of blood in the left ventricle when the aortic valve opens
B.Volume of blood in the left ventricle when the aortic valve closes

Accepted Answer

The answer of Use the following answer code to compare...

Question 16

Use the following answer code to compare the magnitude of the items in question.
a.A is greater than b.b.B is greater than a.c.A and B are equal or nearly equal.
-a.Volume of blood in the left ventricle when the left AV valve opens
B.Volume of blood in the left ventricle when the left AV valve closes

Accepted Answer

The answer of Use the following answer code to compare...

Question 17

Use the following answer code to compare the magnitude of the items in question.
a.A is greater than b.b.B is greater than a.c.A and B are equal or nearly equal.
-a.Normal stroke volume
B.Stroke volume on sympathetic stimulation

Accepted Answer

The answer of Use the following answer code to compare...

Question 18

Match heart characteristic with correct anatomical structure.
a.tricuspid valve
b.myocardium
c.aortic semilunar valve
d.AV node
e.sinoatrial node
-Its cells have slow Ca²⁺ channels

Accepted Answer

The answer of Match heart characteristic with correct anatomical structure.
a.tricuspid...

Question 19

Use the following answer code to compare the magnitude of the items in question.
a.A is greater than b.b.B is greater than a.c.A and B are equal or nearly equal.
-a.Spontaneous rate of depolarization in the SA node
B.Spontaneous rate of depolarization in the ventricles

Accepted Answer

The answer of Use the following answer code to compare...

Question 20

Match heart characteristic with correct anatomical structure.
a.tricuspid valve
b.myocardium
c.aortic semilunar valve
d.AV node
e.sinoatrial node
-In a normal heart, its fast Ca²⁺ channels initiate action potentials that determine heart rate

Accepted Answer

The answer of Match heart characteristic with correct anatomical structure.
a.tricuspid...

Quiz 9: Cardiac Physiology

Match heart characteristic with correct anatomical structure. a.tricuspid valve b.myocardium c.aortic semilunar valve d.AV node e.sinoatrial node -Contains Purkinje fibers

Use the following answer code to compare the magnitude of the items in question. a.A is greater than b.b.B is greater than a.c.A and B are equal or nearly equal. -a.Stroke volume when end-diastolic volume equals 130 ml B.Stroke volume when end-diastolic volume equals 160 ml

Use the following answer code to compare the magnitude of the items in question. a.A is greater than b.b.B is greater than a.c.A and B are equal or nearly equal. -a.Duration of the refractory period in cardiac muscle B.Duration of the refractory period in skeletal muscle

Use the following answer code to compare the magnitude of the items in question. a.A is greater than b.b.B is greater than a.c.A and B are equal or nearly equal. -a.Rate of ventricular filling in early diastole B.Rate of ventricular filling in late diastole

Use the following answer code to compare the magnitude of the items in question. a.A is greater than b.b.B is greater than a.c.A and B are equal or nearly equal. -a.Duration of diastole at resting heart rate B.Duration of diastole at rapid heart rate during exercise

Match heart characteristic with correct anatomical structure. a.tricuspid valve b.myocardium c.aortic semilunar valve d.AV node e.sinoatrial node -It is prevented from opening into the right atrium by papillary muscle action

Match heart characteristic with correct anatomical structure. a.tricuspid valve b.myocardium c.aortic semilunar valve d.AV node e.sinoatrial node -This overcomes the afterload of the circuits

Use the following answer code to compare the magnitude of the items in question. a.A is greater than b.b.B is greater than a.c.A and B are equal or nearly equal. -a.Velocity of impulse through the bundle of His and Purkinje system B.Velocity of impulse conduction through the AV node

Use the following answer code to compare the magnitude of the items in question. a.A is greater than b.b.B is greater than a.c.A and B are equal or nearly equal. -a.Duration of the refractory period in cardiac muscle B.Duration of contraction in cardiac muscle

Use the following answer code to compare the magnitude of the items in question. a.A is greater than b.b.B is greater than a.c.A and B are equal or nearly equal. -a.Duration of systole at resting heart rate B.Duration of systole at rapid heart rate during exercise

Use the following answer code to compare the magnitude of the items in question. a.A is greater than b.b.B is greater than a.c.A and B are equal or nearly equal. -a.Coronary blood flow during systole B.Coronary blood flow during diastole

Match heart characteristic with correct anatomical structure. a.tricuspid valve b.myocardium c.aortic semilunar valve d.AV node e.sinoatrial node -Is much thicker on the left side

Use the following answer code to compare the magnitude of the items in question. a.A is greater than b.b.B is greater than a.c.A and B are equal or nearly equal. -a.Volume of blood in the left ventricle when the aortic valve opens B.Volume of blood in the left ventricle when the aortic valve closes

Use the following answer code to compare the magnitude of the items in question. a.A is greater than b.b.B is greater than a.c.A and B are equal or nearly equal. -a.Normal stroke volume B.Stroke volume on sympathetic stimulation

Match heart characteristic with correct anatomical structure. a.tricuspid valve b.myocardium c.aortic semilunar valve d.AV node e.sinoatrial node -Its cells have slow Ca²⁺ channels

Use the following answer code to compare the magnitude of the items in question. a.A is greater than b.b.B is greater than a.c.A and B are equal or nearly equal. -a.Spontaneous rate of depolarization in the SA node B.Spontaneous rate of depolarization in the ventricles

Match heart characteristic with correct anatomical structure. a.tricuspid valve b.myocardium c.aortic semilunar valve d.AV node e.sinoatrial node -In a normal heart, its fast Ca²⁺ channels initiate action potentials that determine heart rate