Cardiovascular System Quiz
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Questions and Answers

What is cardiac output, and how is it calculated?

  • The amount of blood pumped by the right ventricle, calculated by CO × HR
  • The amount of blood pumped by both ventricles, calculated by SV × CO
  • The amount of blood pumped by the atria, calculated by CO × SV
  • The amount of blood ejected by the left ventricle, calculated by HR × SV (correct)

    • What is the normal range for cardiac output?

  • 4 to 8 L/min (correct)
  • 2 to 4 L/min
  • 8 to 12 L/min
  • 6 to 10 L/min

    • What is the effect of a sustained rapid heart rate on diastolic filling and coronary artery perfusion?

  • Increased diastolic filling and coronary artery perfusion
  • Decreased diastolic filling and coronary artery perfusion (correct)
  • Increased diastolic filling and decreased coronary artery perfusion
  • No effect on diastolic filling and coronary artery perfusion

    • What is the term for the ability of the cardiovascular system to alter cardiac output in response to various situations?

    <p>Cardiac reserve</p> Signup and view all the answers

    What happens to afterload when a patient is receiving a drug that decreases it?

    <p>It decreases</p> Signup and view all the answers

    What is the term for the amount of blood ejected by the ventricles with each heartbeat?

    <p>Stroke volume</p> Signup and view all the answers

    What is the primary function of arterioles?

    <p>To regulate blood pressure through vasodilation and vasoconstriction</p> Signup and view all the answers

    What is the normal range for systolic blood pressure?

    <p>Less than 120 mm Hg</p> Signup and view all the answers

    What is the effect of sympathetic stimulation on heart rate?

    <p>It increases heart rate</p> Signup and view all the answers

    What is the function of baroreceptors in the regulation of blood pressure?

    <p>To sense stretch or pressure in the arterial system</p> Signup and view all the answers

    What is the result of increased CO2 levels on the body?

    <p>It increases respiratory rate and blood pressure</p> Signup and view all the answers

    What is the primary function of veins in the circulatory system?

    <p>To carry deoxygenated blood from the body to the heart</p> Signup and view all the answers

    What is the equation that represents blood pressure?

    <p>BP = CO x SVR</p> Signup and view all the answers

    What is the normal range for blood pressure?

    <p>Less than 80 mm Hg</p> Signup and view all the answers

    What is the non-invasive technique used to measure blood pressure?

    <p>Sphygmomanometer and stethoscope</p> Signup and view all the answers

    What is pulse pressure?

    <p>The difference between SBP and DBP</p> Signup and view all the answers

    What is the formula to calculate mean arterial pressure?

    <p>MAP = (SBP + 2 DBP) / 3</p> Signup and view all the answers

    What is a normal pulse pressure?

    <p>About 1/3 of the SBP</p> Signup and view all the answers

    What is a common age-related change in the heart?

    <p>Thickening and stiffening of the heart valves</p> Signup and view all the answers

    What happens to systemic vascular resistance with age?

    <p>It increases</p> Signup and view all the answers

    What is a purpose of measuring postural blood pressure?

    <p>To assess for orthostatic hypotension</p> Signup and view all the answers

    What is a goal for mean arterial pressure?

    <p>MAP &gt; 60 mm Hg</p> Signup and view all the answers

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