https://stream.echo6.co/videos/watch/724896b9-b874-4455-9634-07718437ccbd Official Ninja Nerd Website: https://ninjanerd.org Ninja Nerds! In this lecture, Professor Zach Murphy continues our discussion on gastric secretion by focusing on the intestinal phase. This final phase begins when chyme enters the duodenum, initiating both excitatory and inhibitory mechanisms that fine-tune gastric activity. Initially, the presence of partially digested proteins in the small intestine can briefly stimulate gastric secretion through intestinal gastrin release. However, this is quickly overshadowed by powerful inhibitory signals that slow gastric emptying and reduce acid production, allowing the intestine time to digest and absorb nutrients effectively. We explore the key hormonal mediators in this phase, including secretin, cholecystokinin (CCK), and gastric inhibitory peptide (GIP). Secretin is released in response to acidic chyme, stimulating bicarbonate secretion from the pancreas while inhibiting gastric acid output. CCK responds to fats and partially digested proteins, triggering bile release and further slowing gastric motility. GIP and enterogastric reflexes reduce gastric secretions and promote insulin release to manage postprandial glucose levels. Enjoy the lecture and support us below! 🌐 Official Links Website: https://www.ninjanerd.org Podcast: https://podcast.ninjanerd.org Store: https://merch.ninjanerd.org 📱 Social Media https://www.tiktok.com/@ninjanerdlectures https://www.instagram.com/ninjanerdlectures https://www.facebook.com/ninjanerdlectures https://x.com/ninjanerdsci/ https://www.linkedin.com/company/ninja-nerd/ 💬 Join Our Community Discord: https://discord.gg/3srTG4dngW #ninjanerd #GastricSecretion #Gastrointestinal Mon, 13 Apr 2026 22:55:56 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://stream.echo6.co https://stream.echo6.co/client/assets/images/icons/icon-512x512.png https://stream.echo6.co/videos/watch/724896b9-b874-4455-9634-07718437ccbd All rights reserved, unless otherwise specified in the terms specified at https://stream.echo6.co/about and potential licenses granted by each content's rightholder.