to study the effects of parasympathetic denervation on the secretory activity of parotid fistulae , polyethylene catheters were introduced bilaterally into the parotid main excretory ducts of 10 rabbits , followed by unilateral parasympathectomy performed by segmental resection of the tympanic plexus and the chorda tympani nerve .
C0030580
parotid
C0227458
parotid