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ID 49895
file
creator
HAYASHIDANI, Seiji
FUJIWARA, Atsushi
subject
Morphology
Cyclic changes
Human endocervical epithelium
NDC
Medical sciences
abstract
In order to examine the cyclic changes in the endocervical epithelium, fresh human endocervical specimens were obtained from 60 cases for observation by light microscopy (LM), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The results obtained were as follows: 1) The endocervical epithelium was composed of ciliated cells and secretory cells at a ratio of 1:5-10 which did not vary by menstrual cycle, pregnancy and age. 2) Cyclic changes of ciliated cells were not observed in the menstrual cycle, but decrease in number and tip-thinning of the cilia were found in the postmenopausal phase by SEM observation. 3) Dilatation and complexity of the glandular lumen and increase in cell size reached a peak in the ovulatory phase. The findings of secretory cells in the first trimester of pregnancy were the same as those of the ovulatory phase and atrophic changes and simplified formation of the gland were observed in the postmenopausal phase. 4) SEM observation showed surface projections of various sizes and slightly dilated, round and shortened microvilli on the secretory cells in the ovulatory phase and the first trimester of pregnancy. During the postmenopausal phase, atrophic changes such as flattening of the cell surface and decrease and shortening of microvilli were observed. 5) TEM observation showed a peak in secretory granules and organelles in both number and size and exocytotic secretion during the ovulatory phase and the findings observed during the first trimester of pregnancy were similar to those during the ovulatory phase.
description
A reports based on this study was presented at the 34th Annual Meeting of the Chugoku & Shikoku Districts of the Japan Society of Obstetrics and Gynecology held in Y onago on October 10, 1981.
journal title
Hiroshima Journal of Medical Sciences
volume
Volume 35
issue
Issue 1
start page
27
end page
37
date of issued
1986-03
publisher
Hiroshima University School of Medicine
issn
0018-2052
ncid
pubmed id
language
eng
nii type
Departmental Bulletin Paper
HU type
Departmental Bulletin Papers
DCMI type
text
format
application/pdf
text version
publisher
department
Graduate School of Biomedical Science
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