in the circular muscle layer of the corpus ( the two curvatures and the corpus between ) , those located in the outermost zone are identical to that commonly described in the alimentary tract , but are gradually substituted , first by larger irregularly shaped cells , and then , towards the innermost area , by flattened cells richer in sarcoplasmic reticulum , with thick and continuous dense bands on their submucosal surface .
C0007634
cells
C0036226
sarcoplasmic reticulum