[Activity of enteric ganglion cells with intact and disrupted interganglionic connections].
Spontaneous unit activity in enterometasympathetic ganglia with intact connections was arrhythmic or quasirhythmic; low-, middle- or high-frequency; single or in trains or mixed. The units appear to be evenly distributed. Successive transection of interganglionic projections reduces the number of units with the spontaneous activity. The quasirhythmic activity existed in completely isolated and major ganglia. Blocking agents and an increase of magnesium ions revealed that the rhythmic activity was endogenous and specific for pace--maker cells. Only a chain of 5--7 interconnected ganglia had all types of the spontaneous activity. Such a complex of ganglia seems to be the most probable functional module of metasympathetic ganglia.
D000818:Animals; D002415:Cats; D004594:Electrophysiology; D005730:Ganglionic Blockers / Q000494:pharmacology; D008274:Magnesium / Q000494:pharmacology; D009197:Myenteric Plexus / Q000187:drug effects / Q000502:physiology*; D010507:Periodicity
D005730:Ganglionic Blockers; D008274:Magnesium
Aktivnost' kletok énteral'nykh gangliev s intaktnymi i narushennymi mezhganglionarnymi sviaziami.