Question 1

Coronary artery disease is the underlying cause of about 10% of all deaths in the United States and worldwide.​

Accepted Answer

A) True 
 B)False

Question 2

About 30% of coronary arterial flow occurs during systole,driven by ventricular contraction.​

Accepted Answer

A) True 
 B)False

Question 3

Most often,both valvular stenosis and insufficiency are caused by __________ fever,an autoimmune disease triggered by a(n)__________ bacterial infection.​

Accepted Answer

rheumatic;

Question 4

Atrial repolarization and ventricular depolarization occur __________.​

Accepted Answer

The answer of Atrial repolarization and ventricular depolarization occur __________.​...

Question 5

Figure 9-14
Use the figure above (Figure 9-14)to answer the corresponding questions.
  
-Which number in the figure represents the ST segment (ventricles are contracting and emptying)?

Accepted Answer

A) ​1 
B) 2 
C) 3 
D) 4 
E) ​5
F)6 
A) ​1 
B) 2 
C) 3 
D) 4 
E) ​5
F)6

Question 6

Which heart valve is bicuspid and also called the mitral valve?​

Accepted Answer

A) ​left AV valve 
B) right AV valve 
C) right ventricular valve 
D) pulmonary valve 
E) ​aortic valve 
A) ​left AV valve 
B) right AV valve 
C) right ventricular valve 
D) pulmonary valve 
E) ​aortic valve

Question 7

Collateral circulation exists when large peripheral branches from adjacent veins nourish the same area.​

Accepted Answer

A) True 
 B)False

Question 8

Which chamber of the heart pumps blood to the lungs via the pulmonary artery?​

Accepted Answer

A) ​right atrium 
B) left atrium 
C) right ventricle 
D) left ventricle 
E) ​pulmonary chamber 
A) ​right atrium 
B) left atrium 
C) right ventricle 
D) left ventricle 
E) ​pulmonary chamber

Question 9

The typical resting heart rate beats at __________ beats per minute.​

Accepted Answer

The answer of The typical resting heart rate beats at...

Question 10

What is the second heart sound associated with?

Accepted Answer

A) ​opening of the semilunar valves 
B) closure of the semilunar valves 
C) opening of the AV valves 
D) closing of the AV valves 
E) ​firing of the SA node 
A) ​opening of the semilunar valves 
B) closure of the semilunar valves 
C) opening of the AV valves 
D) closing of the AV valves 
E) ​firing of the SA node

Question 11

The middle layer of the heart is called the myocardium and is composed of cardiac muscle and constitutes the bulk of the heart wall.

Accepted Answer

A) True 
 B)False

Question 12

An electrocardiogram is usually abbreviated as ECG,but sometimes also as:

Accepted Answer

A) ​EC 
B) EG 
C) ECM 
D) EKG 
E) ​ELC 
A) ​EC 
B) EG 
C) ECM 
D) EKG 
E) ​ELC

Question 13

__________ fibers are small terminal fibers that extend from the bundle of His and spread throughout the ventricular myocardium.​

Accepted Answer

The answer of __________ fibers are small terminal fibers that...

Question 14

Which layer of the heart is the innermost layer?

Accepted Answer

A) ​endothelium 
B) endocardium 
C) epicardium 
D) epithelium 
E) ​myocardium 
A) ​endothelium 
B) endocardium 
C) epicardium 
D) epithelium 
E) ​myocardium

Question 15

What is the main determinant of cardiac muscle fiber length?

Accepted Answer

A) ​heart rate 
B) systolic blood pressure 
C) diastolic blood pressure 
D) the degree of systolic filling 
E) ​the degree of diastolic filling 
A) ​heart rate 
B) systolic blood pressure 
C) diastolic blood pressure 
D) the degree of systolic filling 
E) ​the degree of diastolic filling

Question 16

In response to the presence of oxidized HDL or other irritants,the endothelial cells produce chemicals that attract phagocytes,a type of white blood cell,to the site.​

Accepted Answer

A) True 
 B)False

Question 17

Cardiac contraction is graded by varying the strength of contraction of all the cardiac muscle cells by intrinsic and extrinsic control mechanisms.​

Accepted Answer

A) True 
 B)False

Question 18

Parasympathetic stimulation and epinephrine enhance the heart's contractility.​

Accepted Answer

A) True 
 B)False

Question 19

Atrial fibrillation is characterized by slow,irregular,uncoordinated depolarizations of the atria with no definite T waves.​

Accepted Answer

A) True 
 B)False

Question 20

Explain the ejection fraction in regards to the heart.

Accepted Answer

The ejection fraction is the ratio of st

Coronary artery disease is the underlying cause of about 10% of all deaths in the United States and worldwide.

About 30% of coronary arterial flow occurs during systole,driven by ventricular contraction.

Most often,both valvular stenosis and insufficiency are caused by fever,an autoimmune disease triggered by a(n) bacterial infection.

Atrial repolarization and ventricular depolarization occur __________.

Figure 9-14 Use the figure above (Figure 9-14)to answer the corresponding questions. -Which number in the figure represents the ST segment (ventricles are contracting and emptying)?

Which heart valve is bicuspid and also called the mitral valve?

Collateral circulation exists when large peripheral branches from adjacent veins nourish the same area.

Which chamber of the heart pumps blood to the lungs via the pulmonary artery?

The typical resting heart rate beats at __________ beats per minute.

What is the second heart sound associated with?

The middle layer of the heart is called the myocardium and is composed of cardiac muscle and constitutes the bulk of the heart wall.

An electrocardiogram is usually abbreviated as ECG,but sometimes also as:

__________ fibers are small terminal fibers that extend from the bundle of His and spread throughout the ventricular myocardium.

Which layer of the heart is the innermost layer?

What is the main determinant of cardiac muscle fiber length?

In response to the presence of oxidized HDL or other irritants,the endothelial cells produce chemicals that attract phagocytes,a type of white blood cell,to the site.

Cardiac contraction is graded by varying the strength of contraction of all the cardiac muscle cells by intrinsic and extrinsic control mechanisms.

Parasympathetic stimulation and epinephrine enhance the heart's contractility.

Atrial fibrillation is characterized by slow,irregular,uncoordinated depolarizations of the atria with no definite T waves.

Explain the ejection fraction in regards to the heart.

Introduction to Physiology and Homeostasis

Cell Physiology

The Plasma Membrane and Membrane Potential

Principles of Neural and Hormonal Communication

The Central Nervous System

The Peripheral Nervous System - Afferent Division - Special Senses

The Peripheral Nervous System - Efferent Division

Muscle Physiology

The Blood Vessels and Blood Pressure

The Blood

Body Defenses

The Respiratory System

The Urinary System

Fluid and Acid Base Balance

The Digestive System

Energy Balance and Temperature Regulation

Principles of Endocrinology - the Central Endocrine Glands

The Peripheral Endocrine Glands

The Reproductive Systembrad

Filters

Exam 9: Cardiac Physiology

Coronary artery disease is the underlying cause of about 10% of all deaths in the United States and worldwide.​

About 30% of coronary arterial flow occurs during systole,driven by ventricular contraction.​

Most often,both valvular stenosis and insufficiency are caused by __________ fever,an autoimmune disease triggered by a(n)__________ bacterial infection.​

Atrial repolarization and ventricular depolarization occur __________.​

Figure 9-14 Use the figure above (Figure 9-14)to answer the corresponding questions. -Which number in the figure represents the ST segment (ventricles are contracting and emptying)?

Which heart valve is bicuspid and also called the mitral valve?​

Collateral circulation exists when large peripheral branches from adjacent veins nourish the same area.​

Which chamber of the heart pumps blood to the lungs via the pulmonary artery?​

The typical resting heart rate beats at __________ beats per minute.​

What is the second heart sound associated with?

The middle layer of the heart is called the myocardium and is composed of cardiac muscle and constitutes the bulk of the heart wall.

An electrocardiogram is usually abbreviated as ECG,but sometimes also as:

__________ fibers are small terminal fibers that extend from the bundle of His and spread throughout the ventricular myocardium.​

Which layer of the heart is the innermost layer?

What is the main determinant of cardiac muscle fiber length?

In response to the presence of oxidized HDL or other irritants,the endothelial cells produce chemicals that attract phagocytes,a type of white blood cell,to the site.​

Cardiac contraction is graded by varying the strength of contraction of all the cardiac muscle cells by intrinsic and extrinsic control mechanisms.​

Parasympathetic stimulation and epinephrine enhance the heart's contractility.​

Atrial fibrillation is characterized by slow,irregular,uncoordinated depolarizations of the atria with no definite T waves.​

Explain the ejection fraction in regards to the heart.

Introduction to Physiology and Homeostasis

Cell Physiology

The Plasma Membrane and Membrane Potential

Principles of Neural and Hormonal Communication

The Central Nervous System

The Peripheral Nervous System - Afferent Division - Special Senses

The Peripheral Nervous System - Efferent Division

Muscle Physiology

The Blood Vessels and Blood Pressure

The Blood

Body Defenses

The Respiratory System

The Urinary System

Fluid and Acid Base Balance

The Digestive System

Energy Balance and Temperature Regulation

Principles of Endocrinology - the Central Endocrine Glands

The Peripheral Endocrine Glands

The Reproductive Systembrad

Filters

Coronary artery disease is the underlying cause of about 10% of all deaths in the United States and worldwide.

About 30% of coronary arterial flow occurs during systole,driven by ventricular contraction.

Most often,both valvular stenosis and insufficiency are caused by fever,an autoimmune disease triggered by a(n) bacterial infection.

Atrial repolarization and ventricular depolarization occur __________.

Which heart valve is bicuspid and also called the mitral valve?

Collateral circulation exists when large peripheral branches from adjacent veins nourish the same area.

Which chamber of the heart pumps blood to the lungs via the pulmonary artery?

The typical resting heart rate beats at __________ beats per minute.

__________ fibers are small terminal fibers that extend from the bundle of His and spread throughout the ventricular myocardium.

In response to the presence of oxidized HDL or other irritants,the endothelial cells produce chemicals that attract phagocytes,a type of white blood cell,to the site.

Cardiac contraction is graded by varying the strength of contraction of all the cardiac muscle cells by intrinsic and extrinsic control mechanisms.

Parasympathetic stimulation and epinephrine enhance the heart's contractility.

Atrial fibrillation is characterized by slow,irregular,uncoordinated depolarizations of the atria with no definite T waves.