the administration of [ d-ala2 , met5 ] enkephalinamide ( dame , 10-250 micrograms/kg ) or morphine sulfate ( ms , 2 mg/kg ) into the right atrium ( ra ) of spontaneously breathing decerebrate rats caused an increase in lung resistance ( rl ) and a decrease in dynamic compliance ( cdyn ) .
C0035203
breathing
C0024109
lung