Template:Windle1940 table2

From Embryology
Table 2 Tissues Separating Fetal from Maternal Blood in the Rabbit Placenta at Various Ages
Age in days 8 10 17 28
Maternal tissue:
Endothelium + - - -
Connective + - - -
Epithelium - - - -
Fetal tissue:
Chorion + + + -
Mesenchyme + + - -
Endothelium + + + +