overlaps develops from adult enteroendocrine cell adult enteroendocrine cell fly_anatomy.ontology ee FBbt:00047149 Diploid endocrine cell which is part of the adult midgut epithelium. There are approximately 1100 of these cells in an adult midgut (Chen et al., 2016). They develop from enteroendocrine precursor cells (Chen et al., 2018). adult enteroendocrine precursor cell adult midgut epithelial cell