Taking Blood Pressure and Understanding Systolic/Diastolic Pressure
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Questions and Answers

What is the primary parameter influenced in the heart after postural changes, exercise, and the dive reflex?

  • TP interval (correct)
  • P wave width
  • QT interval
  • QRS wave width

    • How does the autonomic nervous system respond during postural changes regarding heart rate?

  • Enteric nervous system activation
  • Somatic nervous system activation
  • Parasympathetic nervous system activation (correct)
  • Sympathetic nervous system activation

    • During exercise, why does systolic pressure increase more than diastolic pressure?

  • Increased arteriole constriction during systole
  • Enhanced activation of Parasympathetic nervous system
  • Need to supply more blood to exercising muscles (correct)
  • Decreased blood flow to exercising muscles

    • What is the physiological response of the dive reflex on heart rate?

    <p>Decrease in heart rate for survival</p> Signup and view all the answers

    What is the main cause of heart sounds heard during cardiac cycles?

    <p>Opening and closing of heart valves</p> Signup and view all the answers

    What happens to vessel diameter during reactive hyperemia?

    <p>Vessel dilation</p> Signup and view all the answers

    What is the first sound you hear when measuring blood pressure with a stethoscope?

    <p>Systolic pressure</p> Signup and view all the answers

    Why is systolic pressure typically higher than diastolic pressure?

    <p>Systolic pressure occurs when the heart first contracts</p> Signup and view all the answers

    Which segment of an ECG tracing indicates ventricular depolarization?

    <p>QRS Complex</p> Signup and view all the answers

    What does the T wave represent in an ECG tracing?

    <p>Repolarization of the ventricles</p> Signup and view all the answers

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