GASTROINTESTINAL MOTILITY By N., Sam M.S. - 6 the involuntary movement of contents in the gastrointestinal tract. It is made by alternating contraction and relaxation of muscle fibres that makeup the walls of the tract. GASTROINTESTINAL MOTILITY: "Gastrointestinal motility is an involuntary movement." Related Psychology Terms COLLECTIVE UNCONSCIOUS EFFECTORS EMOTION (General) EGO PSYCHOTHERAPY EXTRAFUSAL FIBER MUSCLE CONTRACTION FIBRILLATION KINETIC DISTURBANCES MUSCLE TWITCH CANNON, WALTER BRADFORD (1871-1945) Cite this page: N., Sam M.S., "GASTROINTESTINAL MOTILITY," in PsychologyDictionary.org, May 11, 2013, https://psychologydictionary.org/gastrointestinal-motility/ (accessed July 3, 2022).