Question 1

When left atrial pressure exceeds left ventricular pressure,

Accepted Answer

A)  left ventricular ejection begins. 
B)  aortic blood pressure begins to rise. 
C)  the bicuspid (mitral) valve opens. 
D)  ventricular volume decreases. 
E)  the tricuspid valve opens. 
A)  left ventricular ejection begins. 
B)  aortic blood pressure begins to rise. 
C)  the bicuspid (mitral) valve opens. 
D)  ventricular volume decreases. 
E)  the tricuspid valve opens. C

Question 2

-Identify structure "B" on the heart diagram.

Accepted Answer

A)  left atrium 
B)  aortic semilunar valve 
C)  bicuspid (mitral) valve 
D)  right atrium 
E)  pulmonary semilunar valve 
A)  left atrium 
B)  aortic semilunar valve 
C)  bicuspid (mitral) valve 
D)  right atrium 
E)  pulmonary semilunar valve E

Question 3

Match the condition with the description.
-patent ductus arteriosus

Accepted Answer

A) allows blood to flow from the aorta to the pulmonary trunk 
B) a blood clot in a coronary vessel 
C) indicates low oxygen levels in peripheral blood vessels 
D) no rhythmic contractions of the myocardium 
E) heart rate less than 60 beats/minute 
A) allows blood to flow from the aorta to the pulmonary trunk 
B) a blood clot in a coronary vessel 
C) indicates low oxygen levels in peripheral blood vessels 
D) no rhythmic contractions of the myocardium 
E) heart rate less than 60 beats/minute A

Question 4

Use the following two choices:
-$\uparrow$ body temperature

Accepted Answer

A) ↑ heart rate 
B) ↓ heart rate 
A) ↑ heart rate 
B) ↓ heart rate

Question 5

The procedure whereby a small balloon is placed into a partially occluded coronary artery and then inflated to increase blood flow through the artery is called a(n)

Accepted Answer

A)  angioplasty. 
B)  coronary bypass. 
C)  urokinase injection. 
D)  tissue plasminogen activation. 
E)  angiogram. 
A)  angioplasty. 
B)  coronary bypass. 
C)  urokinase injection. 
D)  tissue plasminogen activation. 
E)  angiogram.

Question 6

-Blood from the lungs returns directly to this chamber of the heart.

Accepted Answer

The answer of  
-Blood from the lungs returns directly...

Question 7

Angina pectoris is chest pain caused by reduced

Accepted Answer

A)  stimulation of the myocardium. 
B)  blood supply to cardiac muscle. 
C)  fluid in the pericardial sac. 
D)  contractility of the heart. 
E)  action potentials from SA node. 
A)  stimulation of the myocardium. 
B)  blood supply to cardiac muscle. 
C)  fluid in the pericardial sac. 
D)  contractility of the heart. 
E)  action potentials from SA node.

Question 8

The long refractory period observed in cardiac muscle

Accepted Answer

A)  prolongs depolarization of the cardiac muscle. 
B)  prevents tetanic contractions of the cardiac muscle. 
C)  ensures that the heart has adequate time to contract. 
D)  prevents the heart rate from slowing down. 
E)  prevents an increase in heart rate. 
A)  prolongs depolarization of the cardiac muscle. 
B)  prevents tetanic contractions of the cardiac muscle. 
C)  ensures that the heart has adequate time to contract. 
D)  prevents the heart rate from slowing down. 
E)  prevents an increase in heart rate.

Question 9

Match the blood vessel with the appropriate description.
-aorta

Accepted Answer

A) returns blood to the heart from the lower extremities 
B) returns blood to the heart from the lungs 
C) carries blood from the left ventricle into systemic circulation 
D) returns blood to the heart from the head and neck 
E) carries blood from the right ventricle to the lungs 
A) returns blood to the heart from the lower extremities 
B) returns blood to the heart from the lungs 
C) carries blood from the left ventricle into systemic circulation 
D) returns blood to the heart from the head and neck 
E) carries blood from the right ventricle to the lungs

Question 10

Which of the following sequences for the conducting system is correct?

Accepted Answer

A)  AV node, AV bundle, SA node, Purkinje fibers, bundle branches 
B)  Purkinje fibers, bundle branches, AV node, AV bundle, SA node 
C)  SA node, AV node, AV bundle, bundle branches, Purkinje fibers 
D)  SA node, AV bundle, AV node, bundle branches, Purkinje fibers 
E)  AV node, SA node, bundle branches, AV bundle, Purkinje fibers 
A)  AV node, AV bundle, SA node, Purkinje fibers, bundle branches 
B)  Purkinje fibers, bundle branches, AV node, AV bundle, SA node 
C)  SA node, AV node, AV bundle, bundle branches, Purkinje fibers 
D)  SA node, AV bundle, AV node, bundle branches, Purkinje fibers 
E)  AV node, SA node, bundle branches, AV bundle, Purkinje fibers

Question 11

The smooth inner lining of the heart chambers is the __________.

Accepted Answer

The answer of The smooth inner lining of the heart...

Question 12

A stab wound into the heart can result in cardiac tamponade. This means that

Accepted Answer

A)  blood enters the pleural cavity. 
B)  the heart is compressed by blood in the pericardial sac. 
C)  the electrical conduction system of the heart is damaged. 
D)  the left coronary artery has been damaged or cut. 
E)  the heart has lost all of its blood. 
A)  blood enters the pleural cavity. 
B)  the heart is compressed by blood in the pericardial sac. 
C)  the electrical conduction system of the heart is damaged. 
D)  the left coronary artery has been damaged or cut. 
E)  the heart has lost all of its blood.

Question 13

Blood flows from the lungs to the left atrium via the ________ ________.

Accepted Answer

The answer of Blood flows from the lungs to the...

Question 14

What vessel exits the left ventricle?

Accepted Answer

A)  pulmonary trunk 
B)  pulmonary vein 
C)  aorta 
D)  pulmonary artery 
A)  pulmonary trunk 
B)  pulmonary vein 
C)  aorta 
D)  pulmonary artery

Question 15

Match the blood vessel with the appropriate description.
-pulmonary veins

Accepted Answer

A) returns blood to the heart from the lower extremities 
B) returns blood to the heart from the lungs 
C) carries blood from the left ventricle into systemic circulation 
D) returns blood to the heart from the head and neck 
E) carries blood from the right ventricle to the lungs 
A) returns blood to the heart from the lower extremities 
B) returns blood to the heart from the lungs 
C) carries blood from the left ventricle into systemic circulation 
D) returns blood to the heart from the head and neck 
E) carries blood from the right ventricle to the lungs

Question 16

From the right ventricle, blood flows directly into the _____.

Accepted Answer

A)  aorta 
B)  right atrium 
C)  pulmonary trunk 
D)  pulmonary arteries 
E)  pulmonary veins 
A)  aorta 
B)  right atrium 
C)  pulmonary trunk 
D)  pulmonary arteries 
E)  pulmonary veins

Question 17

The right side of the heart receives blood from the body and pumps through _________ circulation to the lungs.

Accepted Answer

A)  hepatic 
B)  pulmonary 
C)  peripheral 
D)  systemic 
A)  hepatic 
B)  pulmonary 
C)  peripheral 
D)  systemic

Question 18

The great cardiac vein and middle cardiac vein empty into a venous cavity called the

Accepted Answer

A)  pulmonary vein. 
B)  inferior vena cava. 
C)  superior vena cava. 
D)  coronary sinus. 
E)  coronary artery. 
A)  pulmonary vein. 
B)  inferior vena cava. 
C)  superior vena cava. 
D)  coronary sinus. 
E)  coronary artery.

Question 19

Mean arterial pressure is

Accepted Answer

A)  cardiac output times peripheral resistance. 
B)  end-diastolic volume minus end-systolic volume. 
C)  maximum cardiac output minus cardiac output when at rest. 
D)  heart rate times stroke volume. 
E)  stroke volume times peripheral resistance. 
A)  cardiac output times peripheral resistance. 
B)  end-diastolic volume minus end-systolic volume. 
C)  maximum cardiac output minus cardiac output when at rest. 
D)  heart rate times stroke volume. 
E)  stroke volume times peripheral resistance.

Question 20

Contraction of the papillary muscles would

Accepted Answer

A)  eject blood from the ventricles. 
B)  prevent the AV valves from protruding into the atria. 
C)  close the semilunar valves. 
D)  cause the atria to eject their contents into the ventricles. 
E)  open the semilunar valves. 
A)  eject blood from the ventricles. 
B)  prevent the AV valves from protruding into the atria. 
C)  close the semilunar valves. 
D)  cause the atria to eject their contents into the ventricles. 
E)  open the semilunar valves.

Exam 20: Cardiovascular System: the Heart

When left atrial pressure exceeds left ventricular pressure,

-Identify structure "B" on the heart diagram.

Match the condition with the description. -patent ductus arteriosus

Use the following two choices: - ↑\uparrow↑ body temperature

The procedure whereby a small balloon is placed into a partially occluded coronary artery and then inflated to increase blood flow through the artery is called a(n)

-Blood from the lungs returns directly to this chamber of the heart.

Angina pectoris is chest pain caused by reduced

The long refractory period observed in cardiac muscle

Match the blood vessel with the appropriate description. -aorta

Which of the following sequences for the conducting system is correct?

The smooth inner lining of the heart chambers is the __________.

A stab wound into the heart can result in cardiac tamponade. This means that

Blood flows from the lungs to the left atrium via the ________ ________.

What vessel exits the left ventricle?

Match the blood vessel with the appropriate description. -pulmonary veins

From the right ventricle, blood flows directly into the _____.

The right side of the heart receives blood from the body and pumps through _________ circulation to the lungs.

The great cardiac vein and middle cardiac vein empty into a venous cavity called the

Mean arterial pressure is

Contraction of the papillary muscles would

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Use the following two choices: - $\uparrow$ body temperature

Blood flows from the lungs to the left atrium via the .