Question 1

Explain the Frank-Starling law of the heart.

Accepted Answer

According to the Frank-Starling law of the heart,to a point,the greater the volume of blood in the heart during diastole,the more forceful the cardiac contraction,and the more blood the ventricle will pump (stroke volume).This is important so that the heart can adjust its pumping capacity in response to changes in venous return,such as during exercise.If,however,the ventricle is stretched beyond its physiologic limit,cardiac output may fall because of volume overload and overstretching of the muscle fibers.

Question 2

Stimulation of alpha-adrenergic receptors results in _____.

Accepted Answer

A)  increased heart rate 
B)  peripheral vasoconstriction 
C)  constriction of bronchial smooth muscle 
D)  increased force of myocardial contraction 
A)  increased heart rate 
B)  peripheral vasoconstriction 
C)  constriction of bronchial smooth muscle 
D)  increased force of myocardial contraction B

Question 3

The heart is divided into _____ chambers but functions as a _____-sided pump.

Accepted Answer

A)  two; four 
B)  three; two 
C)  four; two 
D)  four; three 
A)  two; four 
B)  three; two 
C)  four; two 
D)  four; three C

Question 4

The left main coronary artery divides into the _____ branches.

Accepted Answer

A)  marginal and circumflex 
B)  marginal and anterior descending 
C)  anterior and posterior descending 
D)  anterior descending and circumflex 
A)  marginal and circumflex 
B)  marginal and anterior descending 
C)  anterior and posterior descending 
D)  anterior descending and circumflex

Question 5

The anterior surface of the heart consists primarily of the _____.

Accepted Answer

A)  left atrium 
B)  right atrium 
C)  left ventricle 
D)  right ventricle 
A)  left atrium 
B)  right atrium 
C)  left ventricle 
D)  right ventricle

Question 6

Which side of the heart is a high-pressure system that pumps arterial blood to the systemic circulation?

Accepted Answer

A)  Left 
B)  Right 
A)  Left 
B)  Right

Question 7

Thin strands of fibrous connective tissue extend from the atrioventricular (AV)valves to the papillary muscles and prevent the AV valves from bulging back into the atria during ventricular systole.These strands are called _____.

Accepted Answer

A)  cardiac cilia 
B)  Purkinje fibers 
C)  papillary muscles 
D)  chordae tendineae 
A)  cardiac cilia 
B)  Purkinje fibers 
C)  papillary muscles 
D)  chordae tendineae

Question 8

MATCHING
-Acute coronary syndromes

Accepted Answer

A) _____ in myocardial cells function as electrical connections and allow the cells to conduct electrical impulses very rapidly. 
B) Typically results when the heart's demand for oxygen exceeds its supply from the coronary circulation 
C) Specialized nerve tissue located in the internal carotid arteries and the aortic arch that detect changes in blood pressure 
D) The _____ septum separates the right and left atria. 
E) Electrolyte very important in cardiac muscle contraction.
F)A negative _____ effect refers to a decrease in heart rate.
G)Space between the lungs that contains the heart,great vessels,trachea,and esophagus,among other structures
H)Pulmonary arteries and veins,aorta,superior and inferior vena cavae
I)Term used to refer to distinct conditions caused by a similar sequence of pathologic events-a temporary or permanent blockage of a coronary artery
J)Amount of blood flowing into the right atrium each minute from the systemic circulation
K)Sensors in the internal carotid arteries and aortic arch that detect changes in the concentration of hydrogen ions (pH),oxygen,and carbon dioxide in the blood
L)A buildup of excess blood or fluid in the pericardial space can cause cardiac _____. 
A) _____ in myocardial cells function as electrical connections and allow the cells to conduct electrical impulses very rapidly. 
B) Typically results when the heart's demand for oxygen exceeds its supply from the coronary circulation 
C) Specialized nerve tissue located in the internal carotid arteries and the aortic arch that detect changes in blood pressure 
D) The _____ septum separates the right and left atria. 
E) Electrolyte very important in cardiac muscle contraction.
F)A negative _____ effect refers to a decrease in heart rate.
G)Space between the lungs that contains the heart,great vessels,trachea,and esophagus,among other structures
H)Pulmonary arteries and veins,aorta,superior and inferior vena cavae
I)Term used to refer to distinct conditions caused by a similar sequence of pathologic events-a temporary or permanent blockage of a coronary artery
J)Amount of blood flowing into the right atrium each minute from the systemic circulation
K)Sensors in the internal carotid arteries and aortic arch that detect changes in the concentration of hydrogen ions (pH),oxygen,and carbon dioxide in the blood
L)A buildup of excess blood or fluid in the pericardial space can cause cardiac _____.

Question 9

Your patient is a 62-year-old woman complaining of a "racing heart." Your examination of the patient reveals a pulse rate of 192 beats/min.Briefly explain why recognition of a rapid heart rate is important when providing patient care.

Accepted Answer

Increases in heart rate shorten all phas

Question 10

Blood pressure is the result of cardiac output and peripheral vascular resistance.

Accepted Answer

A) True 
 B)False

Question 11

Name the valve that separates the right ventricle from the right atrium.

Accepted Answer

The answer of Name the valve that separates the right...

Question 12

Which side of the heart is a low-pressure system that pumps venous blood to the lungs?

Accepted Answer

A)  Left 
B)  Right 
A)  Left 
B)  Right

Question 13

MATCHING
-Tamponade

Accepted Answer

A) _____ in myocardial cells function as electrical connections and allow the cells to conduct electrical impulses very rapidly. 
B) Typically results when the heart's demand for oxygen exceeds its supply from the coronary circulation 
C) Specialized nerve tissue located in the internal carotid arteries and the aortic arch that detect changes in blood pressure 
D) The _____ septum separates the right and left atria. 
E) Electrolyte very important in cardiac muscle contraction.
F)A negative _____ effect refers to a decrease in heart rate.
G)Space between the lungs that contains the heart,great vessels,trachea,and esophagus,among other structures
H)Pulmonary arteries and veins,aorta,superior and inferior vena cavae
I)Term used to refer to distinct conditions caused by a similar sequence of pathologic events-a temporary or permanent blockage of a coronary artery
J)Amount of blood flowing into the right atrium each minute from the systemic circulation
K)Sensors in the internal carotid arteries and aortic arch that detect changes in the concentration of hydrogen ions (pH),oxygen,and carbon dioxide in the blood
L)A buildup of excess blood or fluid in the pericardial space can cause cardiac _____. 
A) _____ in myocardial cells function as electrical connections and allow the cells to conduct electrical impulses very rapidly. 
B) Typically results when the heart's demand for oxygen exceeds its supply from the coronary circulation 
C) Specialized nerve tissue located in the internal carotid arteries and the aortic arch that detect changes in blood pressure 
D) The _____ septum separates the right and left atria. 
E) Electrolyte very important in cardiac muscle contraction.
F)A negative _____ effect refers to a decrease in heart rate.
G)Space between the lungs that contains the heart,great vessels,trachea,and esophagus,among other structures
H)Pulmonary arteries and veins,aorta,superior and inferior vena cavae
I)Term used to refer to distinct conditions caused by a similar sequence of pathologic events-a temporary or permanent blockage of a coronary artery
J)Amount of blood flowing into the right atrium each minute from the systemic circulation
K)Sensors in the internal carotid arteries and aortic arch that detect changes in the concentration of hydrogen ions (pH),oxygen,and carbon dioxide in the blood
L)A buildup of excess blood or fluid in the pericardial space can cause cardiac _____.

Question 14

MATCHING
-Mediastinum

Accepted Answer

A) _____ in myocardial cells function as electrical connections and allow the cells to conduct electrical impulses very rapidly. 
B) Typically results when the heart's demand for oxygen exceeds its supply from the coronary circulation 
C) Specialized nerve tissue located in the internal carotid arteries and the aortic arch that detect changes in blood pressure 
D) The _____ septum separates the right and left atria. 
E) Electrolyte very important in cardiac muscle contraction.
F)A negative _____ effect refers to a decrease in heart rate.
G)Space between the lungs that contains the heart,great vessels,trachea,and esophagus,among other structures
H)Pulmonary arteries and veins,aorta,superior and inferior vena cavae
I)Term used to refer to distinct conditions caused by a similar sequence of pathologic events-a temporary or permanent blockage of a coronary artery
J)Amount of blood flowing into the right atrium each minute from the systemic circulation
K)Sensors in the internal carotid arteries and aortic arch that detect changes in the concentration of hydrogen ions (pH),oxygen,and carbon dioxide in the blood
L)A buildup of excess blood or fluid in the pericardial space can cause cardiac _____. 
A) _____ in myocardial cells function as electrical connections and allow the cells to conduct electrical impulses very rapidly. 
B) Typically results when the heart's demand for oxygen exceeds its supply from the coronary circulation 
C) Specialized nerve tissue located in the internal carotid arteries and the aortic arch that detect changes in blood pressure 
D) The _____ septum separates the right and left atria. 
E) Electrolyte very important in cardiac muscle contraction.
F)A negative _____ effect refers to a decrease in heart rate.
G)Space between the lungs that contains the heart,great vessels,trachea,and esophagus,among other structures
H)Pulmonary arteries and veins,aorta,superior and inferior vena cavae
I)Term used to refer to distinct conditions caused by a similar sequence of pathologic events-a temporary or permanent blockage of a coronary artery
J)Amount of blood flowing into the right atrium each minute from the systemic circulation
K)Sensors in the internal carotid arteries and aortic arch that detect changes in the concentration of hydrogen ions (pH),oxygen,and carbon dioxide in the blood
L)A buildup of excess blood or fluid in the pericardial space can cause cardiac _____.

Question 15

The base of the heart is found at approximately the level of the _____ rib(s).

Accepted Answer

A)  first 
B)  second 
C)  fourth 
D)  fifth and sixth 
A)  first 
B)  second 
C)  fourth 
D)  fifth and sixth

Question 16

Blood pressure is determined by _____ multiplied by _____.

Accepted Answer

A)  stroke volume; heart rate 
B)  heart rate; cardiac output 
C)  cardiac output; peripheral vascular resistance 
D)  stroke volume; peripheral vascular resistance 
A)  stroke volume; heart rate 
B)  heart rate; cardiac output 
C)  cardiac output; peripheral vascular resistance 
D)  stroke volume; peripheral vascular resistance

Question 17

A patient has a heart rate of 80 beats/min.His stroke volume is 70 mL/beat.Is his cardiac output normal,decreased,or increased?

Accepted Answer

Output is normal.
Stroke volum

Question 18

Blood leaves the left ventricle through the _____ valve to the aorta and its branches and is distributed throughout the body.

Accepted Answer

A)  mitral 
B)  aortic 
C)  pulmonic 
D)  tricuspid 
A)  mitral 
B)  aortic 
C)  pulmonic 
D)  tricuspid

Question 19

The _____ are the heart chambers that receive blood.

Accepted Answer

The answer of The _____ are the heart chambers that...

Question 20

Chronotropy refers to an effect on _____.

Accepted Answer

A)  heart rate 
B)  force of contraction 
C)  bronchial smooth muscle 
D)  speed of conduction through the atrioventricular node 
A)  heart rate 
B)  force of contraction 
C)  bronchial smooth muscle 
D)  speed of conduction through the atrioventricular node

Explain the Frank-Starling law of the heart.

Stimulation of alpha-adrenergic receptors results in _____.

The heart is divided into _ chambers but functions as a _-sided pump.

The left main coronary artery divides into the _____ branches.

The anterior surface of the heart consists primarily of the _____.

Which side of the heart is a high-pressure system that pumps arterial blood to the systemic circulation?

Thin strands of fibrous connective tissue extend from the atrioventricular (AV)valves to the papillary muscles and prevent the AV valves from bulging back into the atria during ventricular systole.These strands are called _____.

MATCHING -Acute coronary syndromes

Your patient is a 62-year-old woman complaining of a "racing heart." Your examination of the patient reveals a pulse rate of 192 beats/min.Briefly explain why recognition of a rapid heart rate is important when providing patient care.

Blood pressure is the result of cardiac output and peripheral vascular resistance.

Name the valve that separates the right ventricle from the right atrium.

Which side of the heart is a low-pressure system that pumps venous blood to the lungs?

MATCHING -Tamponade

MATCHING -Mediastinum

The base of the heart is found at approximately the level of the _____ rib(s).

Blood pressure is determined by _ multiplied by _.

A patient has a heart rate of 80 beats/min.His stroke volume is 70 mL/beat.Is his cardiac output normal,decreased,or increased?

Blood leaves the left ventricle through the _____ valve to the aorta and its branches and is distributed throughout the body.

The _____ are the heart chambers that receive blood.

Chronotropy refers to an effect on _____.

Basic Electrophysiology

Sinus Mechanisms

Atrial Rhythms

Junctional Rhythms

Ventricular Rhythms

Heart Blocks

Pacemaker Rhythms

Introduction to the 12-Lead ECG

Post-Test

Filters

Exam 1: Anatomy and Physiology

Explain the Frank-Starling law of the heart.

Stimulation of alpha-adrenergic receptors results in _____.

The heart is divided into _____ chambers but functions as a _____-sided pump.

The left main coronary artery divides into the _____ branches.

The anterior surface of the heart consists primarily of the _____.

Which side of the heart is a high-pressure system that pumps arterial blood to the systemic circulation?

Thin strands of fibrous connective tissue extend from the atrioventricular (AV)valves to the papillary muscles and prevent the AV valves from bulging back into the atria during ventricular systole.These strands are called _____.

MATCHING -Acute coronary syndromes

Your patient is a 62-year-old woman complaining of a "racing heart." Your examination of the patient reveals a pulse rate of 192 beats/min.Briefly explain why recognition of a rapid heart rate is important when providing patient care.

Blood pressure is the result of cardiac output and peripheral vascular resistance.

Name the valve that separates the right ventricle from the right atrium.

Which side of the heart is a low-pressure system that pumps venous blood to the lungs?

MATCHING -Tamponade

MATCHING -Mediastinum

The base of the heart is found at approximately the level of the _____ rib(s).

Blood pressure is determined by _____ multiplied by _____.

A patient has a heart rate of 80 beats/min.His stroke volume is 70 mL/beat.Is his cardiac output normal,decreased,or increased?

Blood leaves the left ventricle through the _____ valve to the aorta and its branches and is distributed throughout the body.

The _____ are the heart chambers that receive blood.

Chronotropy refers to an effect on _____.

Basic Electrophysiology

Sinus Mechanisms

Atrial Rhythms

Junctional Rhythms

Ventricular Rhythms

Heart Blocks

Pacemaker Rhythms

Introduction to the 12-Lead ECG

Post-Test

Filters

The heart is divided into _ chambers but functions as a _-sided pump.

Blood pressure is determined by _ multiplied by _.