Fig. 1From: Effects of nicotine on odor-induced increases in regional blood flow in the olfactory bulb in ratsSchematic diagram of the experimental procedures. Regional blood flow in the olfactory bulb and frontal cortex were measured by laser Doppler flowmetry. Odor (5% amyl acetate (AA)] was applied by constant flow of humidified nitrogen into the nose using a custom-built odor delivery system. The flow passes through a tube inserted into the larynx. A tracheal tube was inserted caudally into the trachea, and respiration was artificially maintained using a respirator. Vehicle is 100% propylene glycolBack to article page