A STUDY OF SEGMENTAL DISTRIBUTION OF PRIMARY SENSORY NEURONS OF RABBIT UTERUS BY RETROGRADE HORSERADISH PEROXIDASE (HRP) METHOD / 解剖学报

ABSTRACT

The distribution of the primary sonsory neurons from the uterus was studied in 20 female rabbits by the HRP method. The results were as followsThe HRP-labeled cells were found in all the spinal ganglia from T_9 to Co_1,but they were highly concentrated in two groups, namely L_(2～5) and S_(3～4). There were more labeled cells in the lumbar group than in the sacral group with the highest freguency in L_4 and S_3 ganglion in each group respectively. There were only a few labeled cells in L_(6～7) and S_1 spinal ganglia. The ratio of labeled cells in the thoracic and lumbar ganglia to those in the sacral and coccygeal was about 51.The number of labeled cells was largest following injection of HRP in the uterine cervix, smallest in the middle of the body and intermidiate in the upper and lower rogions of the uterine body. There is no difference in the distribution of labeled cell from different regions of the uterus.The majority of labeled cells were small, only a few were large ones.