title: The topography of posttetanic potentiation in guinea-pig ileum.
abstract: The myenteric plexus-longitudinal muscle preparation of the guinea-pig ileum offers, by its anatomical arrangement, the possibility of studying a new aspect of posttetanic potentiation (PTP); its topography. Evidence was sought and obtained that during PTP more distal junctional sites of cholinergic nerve terminals may be recruited into the transmitter secretion process.
mesh_terms: D000109:Acetylcholine / Q000502:physiology; D000200:Action Potentials; D000818:Animals; D004558:Electric Stimulation; D004576:Electromyography; D006168:Guinea Pigs; D007082:Ileum / Q000502:physiology*; D009119:Muscle Contraction; D009474:Neurons / Q000502:physiology; D013569:Synapses / Q000502:physiology
chemical_list: D000109:Acetylcholine