Responses of aortic chemoreceptors.

5 cats anesthetized with chloralose (48 single chemo-receptor fibers in the vagus or aortic nerve recorded)

Experimental stimuli including asphyxia, injection of nicotine into the right atrium or root of the aorta, hypoxia, and hypercapnia

Chemoreceptor activity (discharge of irregular impulses, latency of increased firing, conduction velocities, maximal frequency of discharge, threshold of stimulation)surrogate