The ultrastructure of pinealocytes in the pig.
Pinealocytes of female pigs were studied electron-microscopically and compared with those of other mammals. A prominent Golgi apparatus forming dense-cored vesicles was widely dispersed in the cytoplasm of the cell body. A very characteristic feature of the pig pinealocytes was the presence of membrane-bounded bodies showing wide variations in internal structure. Possible roles of the dense-cored vesicles and membrane-bounded bodies in secretory processes of pinealocytes are discussed.
D000818:Animals; D005260:Female; D006056:Golgi Apparatus / Q000648:ultrastructure; D008854:Microscopy, Electron; D010870:Pineal Gland / Q000648:ultrastructure*; D013045:Species Specificity; D013552:Swine / Q000033:anatomy & histology*