Question 1

Sympathetic stimulation increases the heart rate.

Accepted Answer

A) True 
 B)False

Question 2

An increase in the end-diastolic volume ____________________ the stroke volume.

Accepted Answer

The answer of An increase in the end-diastolic volume ____________________...

Question 3

The ____________________ extracts cholesterol from the blood and converts it into ____________________, which are secreted into the bile.

Accepted Answer

The answer of The ____________________ extracts cholesterol from the blood...

Question 4

Match the terms, labelled a. through f., with the descriptions. (Options may be used more than once or not at all.)
-The maximum volume of blood that the ventricle contains after filling is complete is the _____.

Accepted Answer

A) stroke volume 
B) end-diastolic volume 
C) cardiac output 
D) heart rate 
E) end-systolic volume
F)sympathetic activity 
A) stroke volume 
B) end-diastolic volume 
C) cardiac output 
D) heart rate 
E) end-systolic volume
F)sympathetic activity

Question 5

Match the term, labelled 
Match the term, labelled a. through g., with their correct characteristic.
-muscle mass that becomes excited and contracts as a unit

Accepted Answer

A) gap junction 
B) HDL 
C) functional syncytium 
D) heart valve 
E) pericardial sac
F)LDL
G)adenosine 
A) gap junction 
B) HDL 
C) functional syncytium 
D) heart valve 
E) pericardial sac
F)LDL
G)adenosine

Question 6

Match the factor involved in the initiation and spread of cardiac excitation, labelled a. through d. with the description. (Options may be used more than once or not at all.)
-delays conduction of the impulse

Accepted Answer

A) SA node 
B) AV node 
C) bundle of His and Purkinje system 
D) gap junction 
A) SA node 
B) AV node 
C) bundle of His and Purkinje system 
D) gap junction

Question 7

The ____________________ are the kinds of blood vessels that experience congestion for congestive heart failure.

Accepted Answer

The answer of The ____________________ are the kinds of blood...

Question 8

Which of these terms refers to the term systole

Accepted Answer

A) closure 
B) conduction 
C) contraction 
D) opening 
A) closure 
B) conduction 
C) contraction 
D) opening

Question 9

Describe the primary factors that influence cardiac output.

Accepted Answer

Cardiac output is influenced by several

Question 10

What is the normal direction of the impulse through the conduction system of the heart for each cardiac cycle

Accepted Answer

A) AV node to SA node to bundle of His to Purkinje fibres 
B) AV node to bundle of His to SA node to Purkinje fibres 
C) bundle of His to AV node to Purkinje fibres to SA node 
D) SA node to AV node to bundle of His to Purkinje fibres 
A) AV node to SA node to bundle of His to Purkinje fibres 
B) AV node to bundle of His to SA node to Purkinje fibres 
C) bundle of His to AV node to Purkinje fibres to SA node 
D) SA node to AV node to bundle of His to Purkinje fibres

Question 11

Match the terms, labelled a. through f., with the descriptions. (Options may be used more than once or not at all.)
-The minimum volume of blood that the ventricle contains after emptying is complete is the _____.

Accepted Answer

A) stroke volume 
B) end-diastolic volume 
C) cardiac output 
D) heart rate 
E) end-systolic volume
F)sympathetic activity 
A) stroke volume 
B) end-diastolic volume 
C) cardiac output 
D) heart rate 
E) end-systolic volume
F)sympathetic activity

Question 12

Sympathetic stimulation of the heart increases calcium permeability.

Accepted Answer

A) True 
 B)False

Question 13

The plateau phase of the action potential in a contractile cardiac muscle cell occurs as a result of activation of slow Ca²⁺ channels.

Accepted Answer

A) True 
 B)False

Question 14

The ____________________ is the volume of blood pumped by each ventricle/minute.

Accepted Answer

The answer of The ____________________ is the volume of blood...

Question 15

Which of the following factors will NOT increase cardiac output

Accepted Answer

A) increased venous return 
B) increased parasympathetic stimulation 
C) increased preload 
D) increased heart rate 
A) increased venous return 
B) increased parasympathetic stimulation 
C) increased preload 
D) increased heart rate

Question 16

Which of these statements describes why the heart valves open and close

Accepted Answer

A) There is prolonged calcium influx. 
B) There is turbulent flow in the atria and ventricles. 
C) Na+ and K⁺ fluxes occur during ventricular depolarization. 
D) There is a pressure difference on the two sides of the valve. 
A) There is prolonged calcium influx. 
B) There is turbulent flow in the atria and ventricles. 
C) Na+ and K⁺ fluxes occur during ventricular depolarization. 
D) There is a pressure difference on the two sides of the valve.

Question 17

What is the purpose of the AV nodal delay

Accepted Answer

A) to ensure that all blood from the atria flows into the ventricles prior to ventricular systole 
B) to ensure that all blood from the ventricles flows into the atria prior to atrial systole 
C) to ensure that tetanic contraction of cardiac muscle is not possible 
D) to ensure that heart rate slows down by parasympathetic stimulation 
A) to ensure that all blood from the atria flows into the ventricles prior to ventricular systole 
B) to ensure that all blood from the ventricles flows into the atria prior to atrial systole 
C) to ensure that tetanic contraction of cardiac muscle is not possible 
D) to ensure that heart rate slows down by parasympathetic stimulation

Question 18

Which of these statements refers to the Frank-Starling law of the heart

Accepted Answer

A) The shorter the initial length of the cardiac muscle fibres prior to contraction, the more forceful will be the subsequent contraction. 
B) Increasing the venous return increases the end-diastolic volume, which leads to an increased stroke volume. 
C) As cardiac output is reduced, blood pools in the vasculature so that arterial blood pressure increases. 
D) The output of the left side of the heart must always exceed that of the right side of the heart. 
A) The shorter the initial length of the cardiac muscle fibres prior to contraction, the more forceful will be the subsequent contraction. 
B) Increasing the venous return increases the end-diastolic volume, which leads to an increased stroke volume. 
C) As cardiac output is reduced, blood pools in the vasculature so that arterial blood pressure increases. 
D) The output of the left side of the heart must always exceed that of the right side of the heart.

Question 19

Match the anatomical structures, labelled a. through e., with the heart characteristics. (Options may be used more than once or not at all.)
-its fast Ca²⁺ channels help initiate

Accepted Answer

A) tricuspid valve 
B) myocardium 
C) aortic semilunar valve 
D) AV node 
E) sinoatrial node 
A) tricuspid valve 
B) myocardium 
C) aortic semilunar valve 
D) AV node 
E) sinoatrial node

Question 20

Which of these events is happening during the isovolumetric phase of ventricular systole

Accepted Answer

A) The ventricles are relaxed isometrically. 
B) The atrioventricular valves and semilunar valves are closed. 
C) Blood is being ejected into the great vessels. 
D) Venous blood is flowing back to the heart. 
A) The ventricles are relaxed isometrically. 
B) The atrioventricular valves and semilunar valves are closed. 
C) Blood is being ejected into the great vessels. 
D) Venous blood is flowing back to the heart.

Sympathetic stimulation increases the heart rate.

An increase in the end-diastolic volume ____________________ the stroke volume.

The extracts cholesterol from the blood and converts it into , which are secreted into the bile.

Match the terms, labelled a. through f., with the descriptions. (Options may be used more than once or not at all.) -The maximum volume of blood that the ventricle contains after filling is complete is the _____.

Match the term, labelled Match the term, labelled a. through g., with their correct characteristic. -muscle mass that becomes excited and contracts as a unit

Match the factor involved in the initiation and spread of cardiac excitation, labelled a. through d. with the description. (Options may be used more than once or not at all.) -delays conduction of the impulse

The ____________________ are the kinds of blood vessels that experience congestion for congestive heart failure.

Which of these terms refers to the term systole

Describe the primary factors that influence cardiac output.

What is the normal direction of the impulse through the conduction system of the heart for each cardiac cycle

Match the terms, labelled a. through f., with the descriptions. (Options may be used more than once or not at all.) -The minimum volume of blood that the ventricle contains after emptying is complete is the _____.

Sympathetic stimulation of the heart increases calcium permeability.

The plateau phase of the action potential in a contractile cardiac muscle cell occurs as a result of activation of slow Ca²⁺ channels.

The ____________________ is the volume of blood pumped by each ventricle/minute.

Which of the following factors will NOT increase cardiac output

Which of these statements describes why the heart valves open and close

What is the purpose of the AV nodal delay

Which of these statements refers to the Frank-Starling law of the heart

Match the anatomical structures, labelled a. through e., with the heart characteristics. (Options may be used more than once or not at all.) -its fast Ca²⁺ channels help initiate

Which of these events is happening during the isovolumetric phase of ventricular systole

The Foundation of Physiology

Cell Physiology

The Central Nervous System

The Peripheral Nervous System: Sensory, Autonomic, Somatic

Principles of Endocrinology: The Central Endocrine Glands

The Endocrine Glands

Muscle Physiology

Vascular Physiology

The Blood

Body Defences

The Respiratory System

The Urinary System

Fluid and Acidbase Balance

The Digestive System

Energy Balance and Temperature Regulation

The Reproductive System

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Exam 8: Cardiac Physiology

Sympathetic stimulation increases the heart rate.

An increase in the end-diastolic volume ____________________ the stroke volume.

The ____________________ extracts cholesterol from the blood and converts it into ____________________, which are secreted into the bile.

Match the terms, labelled a. through f., with the descriptions. (Options may be used more than once or not at all.) -The maximum volume of blood that the ventricle contains after filling is complete is the _____.

Match the term, labelled Match the term, labelled a. through g., with their correct characteristic. -muscle mass that becomes excited and contracts as a unit

Match the factor involved in the initiation and spread of cardiac excitation, labelled a. through d. with the description. (Options may be used more than once or not at all.) -delays conduction of the impulse

The ____________________ are the kinds of blood vessels that experience congestion for congestive heart failure.

Which of these terms refers to the term systole

Describe the primary factors that influence cardiac output.

What is the normal direction of the impulse through the conduction system of the heart for each cardiac cycle

Match the terms, labelled a. through f., with the descriptions. (Options may be used more than once or not at all.) -The minimum volume of blood that the ventricle contains after emptying is complete is the _____.

Sympathetic stimulation of the heart increases calcium permeability.

The plateau phase of the action potential in a contractile cardiac muscle cell occurs as a result of activation of slow Ca²⁺ channels.

The ____________________ is the volume of blood pumped by each ventricle/minute.

Which of the following factors will NOT increase cardiac output

Which of these statements describes why the heart valves open and close

What is the purpose of the AV nodal delay

Which of these statements refers to the Frank-Starling law of the heart

Match the anatomical structures, labelled a. through e., with the heart characteristics. (Options may be used more than once or not at all.) -its fast Ca²⁺ channels help initiate

Which of these events is happening during the isovolumetric phase of ventricular systole

The Foundation of Physiology

Cell Physiology

The Central Nervous System

The Peripheral Nervous System: Sensory, Autonomic, Somatic

Principles of Endocrinology: The Central Endocrine Glands

The Endocrine Glands

Muscle Physiology

Vascular Physiology

The Blood

Body Defences

The Respiratory System

The Urinary System

Fluid and Acidbase Balance

The Digestive System

Energy Balance and Temperature Regulation

The Reproductive System

Filters

The extracts cholesterol from the blood and converts it into , which are secreted into the bile.