USMLE

GI Nervous Control

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Digestive
  1. Gastrin
  2. Pepsin
  3. Amylase
  4. Lipase
  5. Trypsin
  6. CCK
  7. Secretin
  8. GI System
  9. Ingestion
  10. Liver
  11. Bile
  12. Exocrine Pancreas
  13. Endocrine Pancreas
  14. Small Intestine
  15. Large Intestine
  16. GI Nervous Control
  • Nervous Control of GI System
    • Enteric nervous system coordinates 
      • Autonomic network of neurons around GI tract independent of (but in communication with) parasympathetic/sympathetic nervous system
      • Coordination of peristalsis (motility), segmentation (churning/mixing), and secretion (of enzymes and hormones) after eating
    • Stimulated by parasympathetic activity (rest and digest)
    • Inhibited by sympathetic activity (fight or flight)