we have used it to study the individual contributions of pco2 and po2 in producing the oscillations which occur in the discharge of carotid chemoreceptors in the cat with respiration , by producing repeated end-tidal alternations ( i ) of pco2 in constant hypoxia , ( ii ) of po2 in constant normocapnia and ( iii ) of both po2 and pco2 , i.e . of asphyxia .
C0242184
hypoxia
C0004044
asphyxia