procaine ( 1 x 10 ( -5 ) -1 x 10 ( -4 ) m ) , dibucaine ( 1 x 10 ( -5 ) -1 x 10 ( -4 ) m ) and tetracaine ( 1 x 10 ( -6 ) -1 x 10 ( -5 ) m ) caused an increase followed by a decrease in the rate of spontaneous afferent ( a ) discharges ( d ) accompanied with a decrease in the flow rate of perfusion solution from the pulmonary vein in the isolated lung of the bullfrog , but these local anesthetics only decreased the rate of a.d. synchronized with lung inflation .
C0034090
vein
C0024109
lung