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Mucosa
-- nonkeratinized stratified squamous epithelium
-- lamina propria
-- muscularis mucosa : single longitudinal smooth muscle
Submucosa
-- mucous gland (esophageal gland)
Muscularis externa
-- upper : sketetal muscles (MH 0913 & MH 0913a)
-- middle : skeletal & smooth muscles (MH 0913 & MH 0913b)
-- lower : smooth muscles (MH 0913)
-- Auerbach’s plexus
Adventitia
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