Secondary chorionic villi expand into vascular spaces and invade the mother's capillaries and uterine glands
. The allantois forms the basis of the umbilical cord.
MPO expressed abundantly in the epithelium of endometrium and uterine glands
Milligan, "Progesterone stimulation of fluid absorption by the rat uterine gland
," Reproduction, vol.
The endometrium evidenced dilated uterine glands
with relatively scanty stroma.
The finger-like villi of trophectoderm which penetrate into the mouths of the uterine glands
between d 15 to 18 disappear by d 20 of pregnancy.
The evidence of the integrity of epithelial cells, in association with the development of uterine glands
in groups I and II suggests that the uterus was receptive to embryonic implantation.
The resulting reproductive-tract abnormalities in the two groups, such as malformed oviducts and missing uterine glands
, closely resembled each other, says Sassoon.
A passing loss of appropriate regulation in very young animals leads to reproductive changes--for example, in the number of uterine glands
or the thickness of the myometrium, the uterus's muscular outer layer--that give way to more pronounced changes through life.
Diameter of the embryonic vesicle in mm and uterine glands
in [micro]m were recorded.
Significantly less luminal folding was observed in response to Aroclor 1254 in both the wild-type and Wnt7a +/- samples; however, distinct uterine glands
formed precociously (Figure 2C,F).