Functional GI anatomy

structure of the gut wall

From superficial to deep:

  • Serosa
  • Myenteric plexus (Auerbach)
  • Circular + longitudinal muscle layers
  • Submucosal plexus (Meissner)
  • Muscularis mucosa
  • Lamina propria
  • Mucosa

Saliva

  • Sites of production, composition and functions in health
  • Control of salivary secretion via taste (and additionally smell) receptors
  • Saliva production