[Neuronal activity of microganglia of the vena cava orifice]

Spontaneous activity of ganglionic neurons was studied in vitro in subserous plexus of the isolated preparations of inferior vena cava segments attached to the ventricle. Presence of the active neurons along with the "silent" those was shown. Mechanosensitive neurons with a single response to mechanical stimulation constituted a separate group. The neurons under study belong to the metasympathetic part of the nervous system and are supposed to affect the functional state regulation of the intracardiac sinus node.