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Stomach: Muscularis Externa
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Slide 27: Myenteric plexus (Auerbach's plexus) between layers of the muscularis externa. Find at least 12 perikarya (not all are sectioned through their nuclei). Distinguish this plexus from Meissner's plexus by location and function. Remember that the stomach has 3 layers of muscularis externa (unlike the 2 layers in most of the rest of the gut) that run rather obliquely.