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665 Physiology

Concerning the peripheral chemoreceptors, True is:

AThey respond to changes in the aerial PO2 but not pH
BUnder normoxic conditions, the response to changes in PO2 is very small
CThe response to changes in PCO2 is slower than for central chemoreceptors
DThey are the most impoant receptors causing an increased ventilation in response to a rise in PCO2.
Physiology
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