Secretory granules in the columnar cells of the cecum and the great colon of the horse.
D000818:Animals; D002432:Cecum / Q000166:cytology*; D003106:Colon / Q000166:cytology*; D006736:Horses / Q000033:anatomy & histology*; D007413:Intestinal Mucosa / Q000166:cytology / Q000378:metabolism; D008854:Microscopy, Electron