Intestinal movement

"Intestinal movement" refers to the coordinated contraction and relaxation of smooth muscle in the gastrointestinal tract, enabling propulsion and mixing of luminal contents. This process, termed peristalsis, relies on the integration of electrical activity generated by interstitial cells of Cajal (the gut "pacemakers"), neurotransmitter release from enteric neurons (notably acetylcholine, serotonin, nitric oxide), and hormonal signals (such as motilin and secretin)[3][4][8]. There is no single molecular target for "intestinal movement"; rather, it is the result of interaction among various cellular and molecular systems that regulate muscle contraction and relaxation across different segments of the GI tract[1][6][7].

Other names

Gastrointestinal motilityPeristalsisIntestinal peristalsisGI motility

Stimulation or inhibition of neurotransmitter release (acetylcholine, serotonin, nitric oxide); Modulation of smooth muscle contractility (via calcium channel, G protein-coupled receptor signaling, kinase pathways); Agonism or antagonism of specific receptors (motilin receptor, serotonin 5-HT4 receptor, opioid receptors).