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- **Chemistry** - linear 22 AA peptide - unrelated to other hormones - **Stimuli/release** - Released from M-cells of duodenum and proximal jejunum during fasting at 100 min intervals - Release is under neural control - **Physiological effects** - Stimulates upper G.I. motility - Acc...
- **Chemistry** - linear 22 AA peptide - unrelated to other hormones - **Stimuli/release** - Released from M-cells of duodenum and proximal jejunum during fasting at 100 min intervals - Release is under neural control - **Physiological effects** - Stimulates upper G.I. motility - Accounts for the migrating motility complex, "housekeeping contractions"