Histological study of the paracervical ganglion (Frankenhäuser) in mice
Kitao, K.
Hokkaido Journal of Medical Science 54(6): 611-619
1979
ISSN/ISBN: 0367-6102 PMID: 544411 Document Number: 142909
The paracervical ganglion in dd-mice ranging from birth to 90 days old was studied qualitatively and quantitatively by light microscopy. The paracervical ganglion is located just lateral to the fornix vagina and is shaped like a flattened cone. Of the parenchymal cells, nerve cells are 97% and chromaffin cells are 3%. The chromaffin cells are arranged in small clusters or individually. They are scattered throughout the ganglion. Their chromaffin reaction varies in density from cell to cell. In neonatal mice the ganglion consists of nerve cells and small spherical cells. With advancing age, as the small cells decrease in number, chromaffin cells appear. At 20 days old, the ganglion is almost equal in structure to the adult. The nuclear and cellular size distribution curves of nerve cells are symmetrical in pattern after 20 days old. The nuclear size distribution curves of the chromaffin cells are symmetrical and about the same in pattern in newborns as in adults. The cellular size distribution curve of chromaffin cells are symmetrical before 20 days old. With advancing age the curve shifts to the larger size and becomes asymmetrical due to an increase of larger cells.