Immunocytochemical and electrophysiological investigations of central neurones in the parasitic nematode Ascaris suum.

Here we report on preliminary investigations into the morphological, neurochemical and electrophysiological characteristics of central neurones in the parasitic nematode Ascaris suum. The neurones do not display all or none action potentials and apparently have low resting membrane potentials. Neurones have been shown to respond to acetylcholine. Immunoreactivity to a diverse range of neuropeptides has been demonstrated.