Ultrastructural observation and morphometrical quantitation of small intestine nerves in human fetuses
- VernacularTitle:人胚胎期小肠神经的超微结构观察和体视学定量测定
- Author:
Tian YANG
;
Wenqin CAI
;
- Publication Type:Journal Article
- Keywords:
embryo;
intestine;
small;
nerve tissue/UL
- From:Journal of Third Military Medical University
1983;0(03):-
- CountryChina
- Language:Chinese
-
Abstract:
The development of the nerves of the small intestine was studied in 26 human fetuses with the gestational age of 11 to 40 weeks.The findings are as follows:(1)The distance between the Auerbach's ganglia and the muscular layer is small in the early fetal period and it increases progressively as the fetus grows.(2)The density of neuropils increases gradually.(3)The number of large gradual vacuoles (LGV) is small in the 3rd month of gestation,and it increases gradually and is quite numerous in the 6th month.(4)The morphology of the synapses is not so typical as that of an adult.(5)The peak values of the stereological morphological parameters of the organelles in the neurons appear between the 4th-6th month and maintain at a relatively high level until the baby is bron.
