*'''Metabolic control of respiration''' - Mammalian respiration is controlled to maintain blood CO2 and pH within narrow limits whereas blood oxygen partial pressure and temperature control reptilian respiration. Hypoxaemia increases the rate of breathing rather than hypercapnia. High oxygen environments (e.g. 100% oxygen during recovery from anaesthesia) suppress the spontaneous respiratory rate. | *'''Metabolic control of respiration''' - Mammalian respiration is controlled to maintain blood CO2 and pH within narrow limits whereas blood oxygen partial pressure and temperature control reptilian respiration. Hypoxaemia increases the rate of breathing rather than hypercapnia. High oxygen environments (e.g. 100% oxygen during recovery from anaesthesia) suppress the spontaneous respiratory rate. |