Control of Respiration
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| Actual or hypothetical respiratory control centers in the pons | Apneustic center, Pnemotaxic center
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| Respiratory control centers in the medulla | VRG(ventral resp group, DRG(dorsal resp group)
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| Respond to overinflation and underinflation of the lungs | Stretch receptors in the lungs
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| Respond to decreased oxygen levels in the blood | Chemoreceptors in the aortic arch and the carotid body
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| Also called the inspiratory center | dorsal resp group(DRG)
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| Medullary area that contains approximately even numbers of neurons involved in inspiration and expiration | ventral resp group(VRG)
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| The breathing "rhythm" center | dorsal resp group(DRG)
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| Basically acts to inhibit the dorsal respiratory group(DRG) | Pneumotaxic center
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| Why is it inadvisable to administer pure O2 to a patient who suffers from pulm dz and retains carbon dioxide? | Declining oxygen level provide the respiratory drive therefore pure oxygen would cause apnea
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| Arterial PO2 below 60mmHg stimulates hyperventilation primarily affects: | Peripheral chemoreceptors
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| Decrease in arterial pH stimulates hyperventilation primarily affects: | Peripheral chemoreceptors
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| Increase in PCO2 in the CSF causes increases in respiratory rate and depth primarily affects: | central chemoreceptors
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