Control of Breathing

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Last updated 7:21 AM on 8/25/26
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4 Terms

1
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Where is the central respiratory center located?

  • Brainstem

  • Integrates information from:

    • Central chemoreceptors

    • Peripheral chemoreceptors

    • Mechanoreceptors


2
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What do central chemoreceptors respond to?

  • Located in medulla

  • Respond primarily to:

    • ↑ PaCO₂

    • ↑ Hydrogen ions

  • Response → ↑ ventilation


3
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What do peripheral chemoreceptors respond to?

  • Located in carotid bodies

  • Respond to:

    • Hypoxemia

    • CO₂ changes

    • H⁺ changes

  • Response → ↑ ventilation


4
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What is the role of respiratory mechanoreceptors?

  • Monitor mechanical forces

  • Inhibit muscle activity when contraction force reaches potentially harmful levels