
TY  - JOUR
A1  - Jaggi, M 
A1  - Mehrotra, PK 
A1  - Maitra, SC 
A1  - Agarwal, SL 
A1  - Das, K 
A1  - Kamboj, VP 
T1  - Ultrastructure of cellular components of human trophoblasts during early pregnancy
JF  - Reproduction, Fertility and Development
JO  - Reprod. Fertil. Dev.
Y1  - 1995
VL  - 7
IS  - 6
SP  - 1539
EP  - 1546
KW  - 
UR  - https://doi.org/10.1071/RD9951539 
N2  - Two cell types, the cyto- and syncytio-trophoblasts, were identified in human chorionic villi of 6-10 weeks' gestation. The intracellular organization of these cells was examined. Ultrathin sections of small pieces of chorionic villi revealed the presence of a multinucleate syncytiotrophoblastic layer, whose surface was covered with microvilli. The cytotrophoblasts, however, had a single large nucleus with a prominent nucleolus. An interesting feature of the basement membrane of these cells was the presence of aggregates of dark granules in samples of the earlier gestational age (6-8 weeks) and granular bodies having a dense outer ring and a translucent inner ring with a lucid central area in samples of 8-10 weeks' gestation. Both types of granules are mineralized and are assumed to perform a buffering role for maintaining the neutrality of the layer. 
ER  -

