Arterial Chemoreceptors and Cardiovascular Regulation
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Questions and Answers

What is the physiological nervous system response to acute elevations of intracranial pressure (ICP) known as?

  • Vasopressor response
  • Cushing effect
  • Cushing phenomenon
  • Cushing reflex (correct)

    • Which physician proposed the Cushing reflex in 1901?

  • Dr. Thomas Cushing
  • Dr. Robert Cushing
  • Dr. William Cushing
  • Dr. Harvey Cushing (correct)

    • What is the triad associated with the Cushing reflex?

  • Widened pulse pressure, bradycardia, irregular respirations (correct)
  • Widened pulse pressure, tachycardia, irregular respirations
  • Increased diastolic pressure, tachycardia, regular respirations
  • Decreased pulse pressure, bradycardia, irregular respirations

    • What is the Cushing reflex a physiological response to?

    <p>Acute elevations of intracranial pressure (ICP)</p> Signup and view all the answers

    What is the definition of cerebral perfusion pressure (CPP) in the context of the Cushing reflex?

    <p>The pressure that pushes blood through the cerebrovascular network</p> Signup and view all the answers

    What are the characteristic symptoms of Cushing's triad associated with the Cushing reflex?

    <p>Widened pulse pressure, bradycardia, irregular respirations</p> Signup and view all the answers

    What did Dr. Harvey Cushing propose as the cause of the dramatic increase in blood pressure associated with the Cushing reflex?

    <p>Reflex to brainstem ischemia</p> Signup and view all the answers

    In cases of increased ICP, why does cerebral perfusion pressure (CPP) drop?

    <p>Systolic blood pressure cannot overcome the resistance present in the brain</p> Signup and view all the answers

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