epitheal with glands, lamina propria with small blood vessles and bit of connective tissue, musularis externas as thin muscle layer
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desribe submusocal layer
connective tissue and blood vessels. nerves as submucosal plexus in controlling secretion and contraction
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describe muscularis externas layer
cicular and londituial muscle in peristalis, nerves as myenteric plexus. outisde as adventitia and or serosa. serosa only in peritonial cavity organs which have movement. retroperitonial dont move so have no serosa
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what is epitheilum in oral cavity
stratfied squamous-protection
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epitheium and structure in oesphagus
above diaphram- stratifired squamous, below- columnar epithelium. sphincter at bottom to prevent reflux
6 of 18
stomach adaptions
rugae folding for sa. gastric pits and glands for secretion
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