The pneumotaxic center controls which of the following?
a. Response to changes in blood pH and PCO2
b. Rhythm of the full breathing cycle
c. When inspiration switches off (the inspir-atory time)
d. When inspiration switches on (the expira-tory time)
ANS: C
The pneumotaxic center controls the "switch-off" point of the inspiratory ramp, thus controlling inspiratory time.
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