[Granule-containing cells in the paracervical ganglion (Frankenhäuser): an electron microscopic study (author's transl)].
The fine structure of granule-containing cells in the paracervical ganglion of the adult mouse was studied by electron microscopy. The granule-containing cell contains many granular vesicles which have a core. The vesicles are 80 to 400 nm in diameter. In large granular vesicle, their core is often eccentric in position. According to the morphological feature and distribution pattern of the granular vesicles, the granule-containing cells can be classified into three types; type I, type II, and type III. In type I cells, the granular vesicles of various size and shape are distributed throughout the cytoplasm. In type II cells, the granular vesicles are relatively small in size, ranging 80 to 150 nm in diameter, and distributed throughout the cytoplasm. Type III cells contain small granular vesicles, ranging 80 to 150 nm in diameter, in the peripheral zone of the cytoplasm. The frequencies of type I, type II, and type III cells in the granule-containing cells are 82%, 11%, and 7%, respectively. The cells of three types are intermingled throughout the ganglion. Intermediate cells between the cells of three types are also observed. The granular vesicles seem to be produced in the Golgi apparatus and their contents are thought to be discharged by exocytosis. The results were also discussed in relation to the functional significance of the granule-containing cells in the ganglion.
D000818:Animals; D002584:Cervix Uteri / Q000294:innervation*; D003594:Cytoplasmic Granules / Q000648:ultrastructure; D005260:Female; D005725:Ganglia, Autonomic / Q000648:ultrastructure*; D051379:Mice; D008854:Microscopy, Electron; D009454:Neurofibrils / Q000648:ultrastructure; D009474:Neurons / Q000648:ultrastructure