Question 1

Match the following:
-The outermost layer of the serous pericardium.

Accepted Answer

A) Endocardium 
B) Parietal layer 
C) Myocardium 
D) Epicardium 
A) Endocardium 
B) Parietal layer 
C) Myocardium 
D) Epicardium

Question 2

An electrocardiogram (ECG)provides direct information about valve function.

Accepted Answer

A) True 
 B)False

Question 3

When viewing a dissected heart,it is easy to visually discern the right and left ventricles by ________.

Accepted Answer

A)  tracing out where the auricles connect 
B)  locating the base 
C)  noticing the thickness of the ventricle walls 
D)  finding the papillary muscles 
A)  tracing out where the auricles connect 
B)  locating the base 
C)  noticing the thickness of the ventricle walls 
D)  finding the papillary muscles

Question 4

What is the difference between the auricles and the atria?

Accepted Answer

Auricles are the flaplike appendages att

Question 5

Select the correct statement about the structure of the heart wall.

Accepted Answer

A)  Connective tissue in the heart wall aids in the conduction of the action potential. 
B)  The myocardium is the layer of the heart that actually contracts. 
C)  The fibrous cardiac skeleton forms the bulk of the heart. 
D)  The heart chambers are lined by the endomysium. 
A)  Connective tissue in the heart wall aids in the conduction of the action potential. 
B)  The myocardium is the layer of the heart that actually contracts. 
C)  The fibrous cardiac skeleton forms the bulk of the heart. 
D)  The heart chambers are lined by the endomysium.

Question 6

As pressure in the aorta rises due to atherosclerosis,more ventricular pressure is required to open the aortic valve.

Accepted Answer

A) True 
 B)False

Question 7

Figure 18.2
Using Figure 18.2, match the following:
-Point after which pressure begins to rise in the aorta.

Accepted Answer

A) A 
B) D 
C) E 
A) A 
B) D 
C) E

Question 8

Arterial blood supply to heart muscle is continuous whether the heart is in systole or diastole.

Accepted Answer

A) True 
 B)False

Question 9

Figure 18.1
Using Figure 18.1, match the following:
-Atrioventricular (AV)node.

Accepted Answer

A) E 
B) D 
C) B 
D) A 
E) C 
A) E 
B) D 
C) B 
D) A 
E) C

Question 10

If the vagal nerves to the heart were cut,the result would be that ________.

Accepted Answer

A)  the heart rate would increase by about 25 beats per minute 
B)  parasympathetic stimulation would increase, causing a decrease in heart rate 
C)  the atrioventricular (AV) node would become the pacemaker of the heart 
D)  the heart would stop, since the vagal nerves trigger the heart to contract 
A)  the heart rate would increase by about 25 beats per minute 
B)  parasympathetic stimulation would increase, causing a decrease in heart rate 
C)  the atrioventricular (AV) node would become the pacemaker of the heart 
D)  the heart would stop, since the vagal nerves trigger the heart to contract

Question 11

Figure 18.4
Using Figure 18.4, match the following:
-Left ventricle.

Accepted Answer

A) A 
B) C 
C) D 
D) B 
E) E 
A) A 
B) C 
C) D 
D) B 
E) E

Question 12

Figure 18.4
Using Figure 18.4, match the following:
-Mitral (bicuspid)valve.

Accepted Answer

A) A 
B) C 
C) D 
D) B 
E) E 
A) A 
B) C 
C) D 
D) B 
E) E

Question 13

Figure 18.1
Using Figure 18.1, match the following:
-Sinoatrial (SA)node.

Accepted Answer

A) E 
B) D 
C) B 
D) A 
E) C 
A) E 
B) D 
C) B 
D) A 
E) C

Question 14

When released in large quantities,thyroxine,a thyroid gland hormone,causes a sustained increase in heart rate.

Accepted Answer

A) True 
 B)False

Question 15

The P wave of a normal electrocardiogram indicates ________.

Accepted Answer

A)  ventricular repolarization 
B)  atrial depolarization 
C)  atrial repolarization 
D)  ventricular depolarization 
A)  ventricular repolarization 
B)  atrial depolarization 
C)  atrial repolarization 
D)  ventricular depolarization

Question 16

Norepinephrine acts on the heart by ________.

Accepted Answer

A)  causing threshold to be reached more quickly 
B)  blocking the action of calcium 
C)  causing a decrease in stroke volume 
D)  decreasing heart contractility 
A)  causing threshold to be reached more quickly 
B)  blocking the action of calcium 
C)  causing a decrease in stroke volume 
D)  decreasing heart contractility

Question 17

Match the following:
-Serous layer covering the heart muscle.

Accepted Answer

A) Endocardium 
B) Parietal layer 
C) Myocardium 
D) Epicardium 
A) Endocardium 
B) Parietal layer 
C) Myocardium 
D) Epicardium

Question 18

Figure 18.2
Using Figure 18.2, match the following:
-Ventricular repolarization.

Accepted Answer

A) A 
B) D 
C) E 
A) A 
B) D 
C) E

Question 19

To auscultate the aortic semilunar valve,you would place your stethoscope in the ________.

Accepted Answer

A)  second intercostal space to the right of the sternum 
B)  second intercostal space to the left of the sternum 
C)  fifth right intercostal space 
D)  fifth intercostal space inferior to the left nipple 
A)  second intercostal space to the right of the sternum 
B)  second intercostal space to the left of the sternum 
C)  fifth right intercostal space 
D)  fifth intercostal space inferior to the left nipple

Question 20

During contraction of heart muscle cells ________.

Accepted Answer

A)  all of the calcium required for contraction comes from storage in the sarcoplasmic reticulum 
B)  some calcium enters the cell from the extracellular space and triggers the release of larger amounts of calcium from intracellular stores 
C)  calcium is prevented from entering cardiac fibers that have been stimulated 
D)  the action potential is prevented from spreading from cell to cell by gap junctions 
A)  all of the calcium required for contraction comes from storage in the sarcoplasmic reticulum 
B)  some calcium enters the cell from the extracellular space and triggers the release of larger amounts of calcium from intracellular stores 
C)  calcium is prevented from entering cardiac fibers that have been stimulated 
D)  the action potential is prevented from spreading from cell to cell by gap junctions

Exam 18: The Cardiovascular System: the Heart

Match the following: -The outermost layer of the serous pericardium.

An electrocardiogram (ECG)provides direct information about valve function.

When viewing a dissected heart,it is easy to visually discern the right and left ventricles by ________.

What is the difference between the auricles and the atria?

Select the correct statement about the structure of the heart wall.

As pressure in the aorta rises due to atherosclerosis,more ventricular pressure is required to open the aortic valve.

Figure 18.2 Using Figure 18.2, match the following: -Point after which pressure begins to rise in the aorta.

Arterial blood supply to heart muscle is continuous whether the heart is in systole or diastole.

Figure 18.1 Using Figure 18.1, match the following: -Atrioventricular (AV)node.

If the vagal nerves to the heart were cut,the result would be that ________.

Figure 18.4 Using Figure 18.4, match the following: -Left ventricle.

Figure 18.4 Using Figure 18.4, match the following: -Mitral (bicuspid)valve.

Figure 18.1 Using Figure 18.1, match the following: -Sinoatrial (SA)node.

When released in large quantities,thyroxine,a thyroid gland hormone,causes a sustained increase in heart rate.

The P wave of a normal electrocardiogram indicates ________.

Norepinephrine acts on the heart by ________.

Match the following: -Serous layer covering the heart muscle.

Figure 18.2 Using Figure 18.2, match the following: -Ventricular repolarization.

To auscultate the aortic semilunar valve,you would place your stethoscope in the ________.

During contraction of heart muscle cells ________.

The Human Body: an Orientation

Chemistry Comes Alive

Cells: the Living Units

Tissue: the Living Fabric

The Integumentary System

Bones and Skeletal Tissue

The Skeleton

Joints

Muscles and Muscle Tissue

The Muscular System

Fundamentals of the Nervous System and Nervous Tissue

The Central Nervous System

The Peripheral Nervous System and Reflex Activity

The Autonomic Nervous System

The Special Senses

The Endocrine System

Blood

The Cardiovascular System: Blood Vessels

The Lymphatic System and Lymphoid Organs and Tissues

The Immune System: Innate and Adaptive Body Defenses

The Respiratory System

The Digestive System

Nutrition,metabolism,and Body Temperature Regulation

The Urinary System

Fluid,electrolyte,and Acid-Base Balance

The Reproductive System

Pregnancy and Human Development

Heredity

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