Chapter 18 - The Cardiovascular System: The Heart

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Chapter 18 - The Cardiovascular System The Heart
Cardiac Output and Control
Heart Anatomy
Pathway of Blood
Heart Conduction
Cardiac Cycle
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FINAL ROUND
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Heart Anatomy 100 Question

• Cardiac muscle tissue is found in which layer of
  the heart?
• a. Endocardium
• b. Myocardium
• c. Epicardium
• d. Pericardium

ANSWER
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Heart Anatomy 100 Answer

• Cardiac muscle tissue is found in which layer of
  the heart?
• a. Endocardium
• b. Myocardium
• c. Epicardium
• d. Pericardium

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Heart Anatomy 200 Question

• This valve is found between the right atrium and
  the right ventricle.
• a. Mitral
• b. Tricuspid
• c. Bicuspid
• d. Semilunar

ANSWER
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Heart Anatomy 200 Answer

• This valve is found between the right atrium and
  the right ventricle.
• a. Mitral
• b. Tricuspid
• c. Bicuspid
• d. Semilunar

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Heart Anatomy 300 Question

• The anterior surface of the heart consists mostly
  of this chamber.
• a. Right atrium
• b. Left atrium
• c. Right ventricle
• d. Left ventricle

ANSWER
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Heart Anatomy 300 Answer

• The anterior surface of the heart consists mostly
  of this chamber.
• a. Right atrium
• b. Left atrium
• c. Right ventricle
• d. Left ventricle

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Heart Anatomy 400 Question

• These structures prevent prolapse of the
  atrioventricular valves.
• a. Chordae tendineae
• b. Crista terminalis
• c. Trabeculae carneae
• d. Intercalated discs

ANSWER
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Heart Anatomy 400 Answer

• These structures prevent prolapse of the
  atrioventricular valves.
• a. Chordae tendineae
• b. Crista terminalis
• c. Trabeculae carneae
• d. Intercalated discs

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Heart Anatomy 500 Question

• All of these structures can be identified in the
  ventricles except
• a. trabeculae carneae.
• b. papillary muscles.
• c. pectinate muscles.
• d. chordae tendineae.

ANSWER
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Heart Anatomy 500 Answer

• All of these structures can be identified in the
  ventricles except
• a. trabeculae carneae.
• b. papillary muscles.
• c. pectinate muscles.
• d. chordae tendineae.

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Pathway of Blood 100 Question

• Blood is carried to the heart by these vessels.
• a. Arteries
• b. Veins
• c. Auricles
• d. Capillaries

ANSWER
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Pathway of Blood 100 Answer

• Blood is carried to the heart by these vessels.
• a. Arteries
• b. Veins
• c. Auricles
• d. Capillaries

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Pathway of Blood 200 Question

• All oxygenated blood returns to the heart via
  the
• a. pulmonary artery.
• b. pulmonary veins.
• c. aorta.
• d. venae cavae.

ANSWER
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Pathway of Blood 200 Answer

• All oxygenated blood returns to the heart via
  the
• a. pulmonary artery.
• b. pulmonary veins.
• c. aorta.
• d. venae cavae.

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Pathway of Blood 300 Question

• Blood being pumped out of the left ventricle
  enters the
• a. pulmonary artery.
• b. aorta.
• c. coronary sinus.
• d. venae cavae.

ANSWER
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Pathway of Blood 300 Answer

• Blood being pumped out of the left ventricle
  enters the
• a. pulmonary artery.
• b. aorta.
• c. coronary sinus.
• d. venae cavae.

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Pathway of Blood 400 Question

• Blood is prevented from flowing back into the
  left ventricle by the
• a. aortic semilunar valve.
• b. tricuspid valve.
• c. pulmonary semilunar valve.
• d. mitral valve.

ANSWER
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Pathway of Blood 400 Answer

• Blood is prevented from flowing back into the
  left ventricle by the
• a. aortic semilunar valve.
• b. tricuspid valve.
• c. pulmonary semilunar valve.
• d. mitral valve.

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Pathway of Blood 500 Question

• Deoxygenated blood from the myocardium enters the
  right atrium through the
• a. cardiac veins.
• b. coronary arteries.
• c. coronary sinus.
• d. superior vena cava.

ANSWER
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Pathway of Blood 500 Answer

• Deoxygenated blood from the myocardium enters the
  right atrium through the
• a. cardiac veins.
• b. coronary arteries.
• c. coronary sinus.
• d. superior vena cava.

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Heart Conduction 100 Question

• This area is known as the pacemaker of the heart.
• a. AV node
• b. SA node
• c. Bundle of His
• d. Purkinje fibers

ANSWER
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Heart Conduction 100 Answer

• This area is known as the pacemaker of the heart.
• a. AV node
• b. SA node
• c. Bundle of His
• d. Purkinje fibers

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Heart Conduction 200 Question

• The bundle of His is located here.
• a. Interatrial septum
• b. Interventricular septum
• c. Floor of the right atrium
• d. Apex of the heart

ANSWER
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Heart Conduction 200 Answer

• The bundle of His is located here.
• a. Interatrial septum
• b. Interventricular septum
• c. Floor of the right atrium
• d. Apex of the heart

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Heart Conduction 300 Question

• Atrial repolarization occurs during this period
  of time, seen on an EKG.
• a. P wave
• b. QRS complex
• c. T wave
• d. S-T segment

ANSWER
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Heart Conduction 300 Answer

• Atrial repolarization occurs during this period
  of time, seen on an EKG.
• a. P wave
• b. QRS complex
• c. T wave
• d. S-T segment

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Heart Conduction 400 Question

• The entire ventricular myocardium is depolarized
  during this time on an EKG.
• a. S-T segment
• b. Q-T interval
• c. QRS complex
• d. T wave

ANSWER
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Heart Conduction 400 Answer

• The entire ventricular myocardium is depolarized
  during this time on an EKG.
• a. S-T segment
• b. Q-T interval
• c. QRS complex
• d. T wave

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Heart Conduction 500 Question

• Nerve impulses are directly supplied to the
  papillary muscles by the
• a. SA node.
• b. Purkinje fibers.
• c. AV node.
• d. bundle of His.

ANSWER
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Heart Conduction 500 Answer

• Nerve impulses are directly supplied to the
  papillary muscles by the
• a. SA node.
• b. Purkinje fibers.
• c. AV node.
• d. bundle of His.

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Cardiac Cycle 100 Question

• The lub-dup heart sounds heard during
  auscultation of the heart are associated with
• a. the SA node firing.
• b. the heart valves opening.
• c. the heart valves closing.
• d. blood flowing from the atria to the
  ventricles.

ANSWER
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Cardiac Cycle 100 Answer

• The lub-dup heart sounds heard during
  auscultation of the heart are associated with
• a. the SA node firing.
• b. the heart valves opening.
• c. the heart valves closing.
• d. blood flowing from the atria to the
  ventricles.

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Cardiac Cycle 200 Question

• All four heart valves are closed during this
  time.
• a. All of ventricular systole
• b. All of ventricular diastole
• c. Ventricular ejection
• d. Isovolumetric contraction

ANSWER
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Cardiac Cycle 200 Answer

• All four heart valves are closed during this
  time.
• a. All of ventricular systole
• b. All of ventricular diastole
• c. Ventricular ejection
• d. Isovolumetric contraction

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Cardiac Cycle 300 Question

• Blood flow during ventricular filling is most
  dependent upon ________.
• a. pressure changes
• b. pumping actions
• c. concentration gradients
• d. the conduction system

ANSWER
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Cardiac Cycle 300 Answer

• Blood flow during ventricular filling is most
  dependent upon ________.
• a. pressure changes
• b. pumping actions
• c. concentration gradients
• d. the conduction system

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Cardiac Cycle 400 Question

• During which part of the cardiac cycle would
  pressure in the ventricle be at its lowest?
• a. Mid-diastole
• b. Isovolumetric contraction
• c. Ventricular ejection
• d. Late systole

ANSWER
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Cardiac Cycle 400 Answer

• During which part of the cardiac cycle would
  pressure in the ventricle be at its lowest?
• a. Mid-diastole
• b. Isovolumetric contraction
• c. Ventricular ejection
• d. Late systole

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Cardiac Cycle 500 Question

• The greatest decrease in ventricular pressure
  occurs at this time.
• a. Isovolumetric contraction
• b. Isovolumetric relaxation
• c. Ventricular systole
• d. Ventricular filling

ANSWER
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Cardiac Cycle 500 Answer

• The greatest decrease in ventricular pressure
  occurs at this time.
• a. Isovolumetric contraction
• b. Isovolumetric relaxation
• c. Ventricular systole
• d. Ventricular filling

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Cardiac Output and Control 100 Question

• The amount of blood pumped out of each ventricle
  in one minute is called
• a. stroke volume.
• b. cardiac output.
• c. cardiac reserve.
• d. end diastolic volume.

ANSWER
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Cardiac Output and Control 100 Answer

• The amount of blood pumped out of each ventricle
  in one minute is called
• a. stroke volume.
• b. cardiac output.
• c. cardiac reserve.
• d. end diastolic volume.

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Cardiac Output and Control 200 Question

• An increase in heart rate by the sympathetic
  nervous system is a
• a. positive inotropic effect.
• b. negative inotropic effect.
• c. positive chronotropic effect.
• d. negative chronotropic effect.

ANSWER
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Cardiac Output and Control 200 Answer

• An increase in heart rate by the sympathetic
  nervous system is a
• a. positive inotropic effect.
• b. negative inotropic effect.
• c. positive chronotropic effect.
• d. negative chronotropic effect.

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Cardiac Output and Control 300 Question

• An increase in end diastolic volume would have
  which effect on cardiac output?
• a. Increase
• b. Decrease
• c. No effect
• d. Varies from person to person

ANSWER
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Cardiac Output and Control 300 Answer

• An increase in end diastolic volume would have
  which effect on cardiac output?
• a. Increase
• b. Decrease
• c. No effect
• d. Varies from person to person

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Cardiac Output and Control 400 Question

• The parasympathetic nervous system decreases
  heart rate by
• a. releasing norepinephrine.
• b. opening sodium gates.
• c. closing sodium gates.
• d. opening potassium gates.

ANSWER
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Cardiac Output and Control 400 Answer

• The parasympathetic nervous system decreases
  heart rate by
• a. releasing norepinephrine.
• b. opening sodium gates.
• c. closing sodium gates.
• d. opening potassium gates.

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Cardiac Output and Control 500 Question

• The most important factor for stretching cardiac
  muscle is
• a. heart rate.
• b. end systolic volume.
• c. end diastolic volume.
• d. stroke volume.

ANSWER
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Cardiac Output and Control 500 Answer

• The most important factor for stretching cardiac
  muscle is
• a. heart rate.
• b. end systolic volume.
• c. end diastolic volume.
• d. stroke volume.

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FINAL ROUND Question

• Hypertension can decrease cardiac output by
  directly causing an increase in
• a. end systolic volume.
• b. end diastolic volume.
• c. stroke volume.
• d. all three volumes above.

ANSWER
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53
FINAL ROUND Answer

• Hypertension can decrease cardiac output by
  directly causing an increase in
• a. end systolic volume.
• b. end diastolic volume.
• c. stroke volume.
• d. all three volumes above.

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