Cytophotometric study of catecholamines and acetylcholinesterase in neurons of the intramural plexus of the urinary bladder of the cat in controls and animals exposed to experimental conditions

The intramural plexus of the cat urinary bladder was studied with histochemical methods for catecholamines and acetylcholinesterase. Ganglia of the plexus showed differences in the number of neurons (5 to 150 cells). They were adrenergic, cholinergic or mixed. Section of pelvic nerves increased the amount of catecholamines in adrenergic neurons and fibres and decreased the acetylcholinesterase activity. Section of hypogastric nerves did not affect the catecholamine level and acetylcholinesterase activity.