has part has part has_part characteristic of part of has modifier abnormal parotid intralobular duct morphology abnormal parotid striated duct morphology abnormal parotid secretory duct morphology MP:0013748 any structural anomaly of the intralobular secretory duct of the parotid gland which connects an intercalated duct to an interlobular excretory duct; striated ducts are lined by cuboidal to columnar acidophilic cells and are so-named because of characteristic striations in the basal portions of the cells which are due to the alignment of mitochondria between deep infoldings of the basal cell membrane; the nucleus is in the central part of the cell above the striations; as they approach the excretory ducts, their diameter may exceed that of the acini; striated ducts reabsorb sodium and secrete potassium morphology abnormal parotid gland striated duct