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 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 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 tendinae
• b. crista terminalis
• c. trabeculae carneae
• d. intercalated discs

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Heart Anatomy 400 Answer

• These structures prevent prolapse of the
  atrioventricular valves.
• a. chordae tendinae
• 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 tendinae

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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 tendinae

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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

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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. vena cavae

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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. vena 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. vena 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. vena cavae

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Pathway of blood 400 Question

• Blood is prevented from flowing back into the
  left ventricle by the
• a. semilunar valve
• b. tricuspid valve
• c. chordae tendinae
• 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. semilunar valve
• b. tricuspid valve
• c. chordae tendinae
• 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. ST 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. ST segment

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Heart Conduction 400 Question

• The entire ventricular myocardium is depolarized
  during this time on an EKG.
• a. ST segment
• b. QT 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. ST segment
• b. QT 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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32
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
  dependant upon
• a. pressure changes
• b. pumping action
• c. concentration gradient
• d. conduction system

ANSWER
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Cardiac Cycle 300 Answer

• Blood flow during ventricular filling is most
  dependant upon
• a. pressure changes
• b. pumping action
• c. concentration gradient
• d. 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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45
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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46
Cardiac Output and Control 300 Question

• An increase in end diastolic volume would have
  which effect on cardiac ouput.
• 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 ouput.
• a. increase
• b. decrease
• c. no effect
• d. varies from person to person

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48
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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50
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 are increased

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 are increased

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