Electrical and synaptic properties of myenteric plexus neurones in the terminal large intestine of the guinea-pig.

1. Intracellular recording methods were used to investigate the cellular neurophysiology of ganglion cells in the myenteric plexus of the guinea-pig rectum. The rectum is a region of the gastrointestinal tract with specialized functions that include reflex relaxation of the internal and sphincter during defaecation.