FORMATION AND ROLE OF THE PLACENTA
1.
Preparation of the uterus
Window of receptivity
2.
Implantation (nidation)
Apposition, Adhesion
Penetration of endometrial epithelium
Invasion of decidua
3.
Establishment of a hemochorial placenta
Lacunar
Development of chorionic villi
Intervillous
Maternal plasma only
Whole blood
1.
E is proliferative reaches high levels, positive feedback LH and FSH surge, ovulation, P secretory, window of receptivity, pinopods, endometrium mucus covered, LIF (IL-6 cytokine) , sticky integrins,
glycogen
2. Barrier and how overcome.
Clues to infertility, spontaneous (undetected) abortions and ART
3. Chorion development
Final product