Control of Breathing in Brain Stem
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Questions and Answers

What is the primary responsibility of the Medullary Respiratory Center?

  • Initiation of inspiration
  • Regulation of respiratory rate (correct)
  • Control of lung stretch receptors
  • Stimulation of the apneustic center
  • Which center is responsible for limiting the size of tidal volume and regulating respiratory rate?

  • Cerebral Cortex
  • Pneumotaxic Center (correct)
  • Apneustic Center
  • Expiratory Center
  • What abnormal breathing pattern is produced by stimulation of the apneustic center in the lower pons?

  • Control of lung stretch receptors
  • Prolonged inspiratory gasps followed by brief expiratory movement (correct)
  • Hypoventilation
  • Hyperventilation
  • What is the self-limiting consequence of hyperventilation?

    <p>Return to normal breathing pattern</p> Signup and view all the answers

    What controls the basic rhythm for breathing by setting the frequency of inspiration?

    <p>Medullary respiratory center</p> Signup and view all the answers

    Where is the medullary respiratory center located?

    <p>In the reticular formation</p> Signup and view all the answers

    Which type of receptors are involved in the control of breathing and are found in the lung, joints, and muscles for exercise?

    <p>Lung stretch receptors</p> Signup and view all the answers

    Which group of neurons is responsible for stimulating the diaphragm via the phrenic nerve?

    <p>Inspiratory center</p> Signup and view all the answers

    What receives sensory input from peripheral chemoreceptors via cranial nerve IX and vagus nerve?

    <p>Inspiratory center</p> Signup and view all the answers

    Where does the pattern of activity in the phrenic nerve originate from?

    <p>Reticular formation</p> Signup and view all the answers

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