Deck 21: Review of Cardiac Physiology and Pathology

Question 1

_____ blood is pumped from the _____ through the pulmonary arteries to the lungs.

A) Deoxygenated, left ventricle
B) Deoxygenated, right ventricle
C) Oxygenated, left ventricle
D) Oxygenated, right ventricle

Answer 1

Deoxygenated, right ventricle

Question 2

What part of the autonomic nervous system is active during eating,digestion,and sleep?

A) Central nervous system
B) Peripheral nervous system
C) Sympathetic nervous system
D) Parasympathetic nervous system

Answer 2

Parasympathetic nervous system

Question 3

A patient with atherosclerosis will also have:

A) Hyperglycemia
B) Hypercholesterolemia
C) Hypotension
D) Hypoglycemia

Answer 3

Hypercholesterolemia

Question 4

A disease in which the aging process leads to fibrosis and narrowing of the arteries is:

A) Atherosclerosis
B) Arteriosclerosis
C) Ischemia
D) Angina pectoris

Question 5

Repolarization of the ventricles occurs in the:

A) QRS interval
B) P wave
C) ST segment
D) T wave

Question 6

The right atrium receives blood from the:

A) Superior and inferior venae cavae
B) Left ventricle
C) Pulmonary artery
D) Pulmonary vein

Question 7

Excitation and contraction of the heart occurs with:

A) Contraction of the right side of the heart followed by contraction of the left side
B) Contraction of the left side of the heart followed by contraction of the right side
C) Contraction of both ventricles followed by contraction of both atria
D) Contraction of both atria followed by contraction of both ventricles

Question 8

The P wave on an ECG corresponds to

A) Atria depolarization
B) Atria repolarization
C) Ventricle depolarization
D) Ventricle repolarization

Question 9

Dead muscle cells are replaced with connective tissue in a repair process resulting from:

A) Arteriosclerosis
B) Atherosclerosis
C) Lesser myocardial infarction
D) Greater myocardial infarction

Question 10

An increase in heart rate primarily begins with stimulation of which part of the conduction system?

A) Purkinje fibers
B) Bundle of HIS
C) AV node
D) SA node

Question 11

The SA node increases heart rate from the release of _____ in the _____.

A) Norepinephrine, parasympathetic nervous system
B) Norepinephrine, sympathetic nervous system
C) Acetylcholine, parasympathetic nervous system
D) Acetylcholine, sympathetic nervous system

Question 12

Insufficient blood flow in coronary arteries to the heart is common in all of these conditions except:

A) Arteriosclerosis
B) Atherosclerosis
C) Angina pectoris
D) Arrhythmias

Question 13

What region of the heart is responsible for cardiac muscle contraction?

A) Myocardium
B) Epicardium
C) Endocardium
D) Purkinje fibers

Question 14

What regulates the rate and force of contraction of the heart?

A) Autorhythmicity of cardiac nerve supply
B) Central nervous system
C) Autonomic nervous system
D) Peripheral nervous system

Question 15

The parasympathetic nervous system has _____ effect on myocardial contraction.

A) Very little
B) Increased stimulatory
C) Reduced stimulatory
D) Synergistic

Question 16

A decrease in myocardial function will immediately result in:

A) Thromboembolisms
B) Myocardial infarction
C) Ischemia
D) Arteriosclerosis

Question 17

Blood exits the heart from the _____,which then passes through the _____ before circulating throughout the body.

A) Left atrium, lungs
B) Left ventricle, lungs
C) Left ventricle, aorta
D) Right ventricle, aorta

Question 18

A characteristic sign of left-sided heart failure is:

A) Ascites
B) Pulmonary edema
C) Chest pain
D) Arrhythmia

Question 19

What condition occurs when there is insufficient blood in the coronary arteries?

A) Angina pectoris
B) Arteriosclerosis
C) Atherosclerosis
D) Myocardial infarction

Question 20

Parasympathetic nerves release acetylcholine to decrease activity of the _____ and _____.

A) SA node, myocardium
B) AV node, myocardium
C) SA node, AV node
D) Myocardium, Purkinje fibers