How many layers are in G.I. tracts?
Layers of GI Tracts is divided into four layers:
1. Mucosa
i. Epithelium
ii. Lamina propria
iii. Muscularis mucosae
2. Sub-mucosa
3. Muscularis Propria
i.The inner circular muscle layer
ii. Intermuscular space
iii. Outer longitudinal muscle layer
4. Serosa