NEET PG Medical – 2012 – Question – 16
Cytotrophoblasts invades ?
a) D parietalis
b) D basal is
c) D capularis
d) None
Show Answer
Correct Answer – B
Ans. is ‘B’ i.e., D basalis [Ref Human Embryology by Rani Kumar p. 37]
After embedding of blastocyt in the endometrial stroma, the trophoblast differentiates into –
- Cytotrophoblast
- Syncytiotrophoblast
- Syncytiotrophoblast invades uterine epithelial cells.
- Cytotrophoblast invades Decidua basalis (D basalis) after passing through overlying syncytotrophoblast.
