Fig. 1From: Aerosolized methacholine-induced bronchoconstriction and pulmonary hyperinflation in ratsBasic mechanism of the present BPG. BPG was made of two layers. Water around the rectal temperature was circulated in the space between the two layers. An ultrasonic humidifier kept humidity in the BPG >80%. Temperature (°C) and humidity (%) and pressure (P box) in the BPG were continuously measured. Rat’s rectal temperature was also continuously measuredBack to article page