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Stack #16828

Control of Respiration

QuestionAnswer
Actual or hypothetical respiratory control centers in the pons Apneustic center, Pnemotaxic center
Respiratory control centers in the medulla VRG(ventral resp group, DRG(dorsal resp group)
Respond to overinflation and underinflation of the lungs Stretch receptors in the lungs
Respond to decreased oxygen levels in the blood Chemoreceptors in the aortic arch and the carotid body
Also called the inspiratory center dorsal resp group(DRG)
Medullary area that contains approximately even numbers of neurons involved in inspiration and expiration ventral resp group(VRG)
The breathing "rhythm" center dorsal resp group(DRG)
Basically acts to inhibit the dorsal respiratory group(DRG) Pneumotaxic center
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
Arterial PO2 below 60mmHg stimulates hyperventilation primarily affects: Peripheral chemoreceptors
Decrease in arterial pH stimulates hyperventilation primarily affects: Peripheral chemoreceptors
Increase in PCO2 in the CSF causes increases in respiratory rate and depth primarily affects: central chemoreceptors
Created by: butterflee21