IleumGuinea PigsMyenteric PlexusIleal DiseasesMuscle, SmoothIleitisIntestine, SmallIntestinal MucosaMuscle ContractionIleal NeoplasmsIntestinal AbsorptionTime FactorsIntestinesColonGastrointestinal MotilityDuodenumDiphenylacetic AcidsIleocecal ValveAtropineSwineAcetylcholineElectric StimulationCecumPeristalsisCurriculumRabbitsGastrointestinal ContentsCrohn DiseaseEncyclopedias as TopicMesenteric Artery, Superior