THE DEVELOPMENT OF BLOOD CAPILLARIES IN HUMAN FETAL BRAIN——AN ULTRASTRUCTURAL AND QUANTITATIVE STUDY
- VernacularTitle:人胎脑毛细血管形态发育——超微结构及图像分析仪定量研究
- Author:
Liang WANG
;
Yingrui LIANG
;
Waixing TANG
;
Dachong LIU
;
Yong ZHAO
- Publication Type:Journal Article
- Keywords:
Blood-brain barrier;
Ultrastructure;
Morphometry;
Human;
Fetus
- From:
Acta Anatomica Sinica
1957;0(04):-
- CountryChina
- Language:Chinese
-
Abstract:
It is generally accepted that the permeability of the blood-brain barrier in the fetus is higher than in the adult, but its structural basis is still not well known. In this paper, an ultrastructural study was performed on the cerebral capillaries of human fetus aged from 5-9 months and some structural parameters were measured. The results were as follows: (1) the endothelial tight junctions were longer and tortuous, and the clefts within the junctions were found and did not show apparent change in all groups; (2) the plasmalemmal vesicles were larger in 5th month than in the 9th month, and the density of vesicles was low (
