The secretory granules of the acinar cells of the mouse submaxillary gland.
D000818:Animals; D003594:Cytoplasmic Granules; D008722:Methods; D051379:Mice; D008815:Mice, Inbred Strains; D008854:Microscopy, Electron; D013363:Submandibular Gland / Q000166:cytology*; D013997:Time Factors