title: Ultrastructural morphology of secretory granules of submandibular and parotid salivary glands of man.
abstract: Morphological variation among secretory granules of the same type of cell was found in the acini, intercalary and striated ducts, and collecting-ducts, and was greatest in serous and intercalary-duct cells. Secretory granules of monopartite and bipartite structure were seen in all these cell types; tripartite forms were seen in serous and intercalary-duct cells. A possible explanation for the variation is that one type of cell may be able to produce a range of secretory products and package them variously into secretory granules, thus creating different appearances.
mesh_terms: D003594:Cytoplasmic Granules / Q000648:ultrastructure*; D006801:Humans; D008854:Microscopy, Electron; D010306:Parotid Gland / Q000166:cytology / Q000648:ultrastructure*; D013363:Submandibular Gland / Q000166:cytology / Q000648:ultrastructure*