Term
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Definition
-100 cells
-reached the uterus
-fluid accumulates in internal cavity
-forms a blastocyst |
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Term
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Definition
| fluid filled hollow sphere |
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Term
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Definition
-outside layer
-display factors that are immunosuppressive
-participate in placenta formation |
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Term
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Definition
| -becomes embryonic disc (embryo and 3 embryonic membranes) |
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Term
| embryonic stemm cells are obtained by taking cells from |
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Definition
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Term
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Definition
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Term
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Definition
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Term
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Definition
-trophoblast expresses adhesion molecules
-trophoblast adhereres to endometrium
-inflammatory type response (thickening, permeable/leaky blood vessels) |
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Term
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Definition
-cytotrophoblast (inner)
-syncytiotrophoblast (outer) |
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Term
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Definition
-these cells lose plasma membranes and contents invade and digest endometrium to make room for blastocyst
-blastocyst burrows into endometrial lining |
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Term
| implanted blastocyst is covered by |
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Definition
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Term
| implantation is completed on |
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Definition
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Term
| human chorionic gonadotropin |
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Definition
-secreted by trophoblast cells
-prompts corpus luteum to continue secreting progesterone and estrogen
-hCG levels rise until the end of the 2nd month then decline as placenta takes over |
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Term
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Definition
| -formation of placenta from embryonic and maternal tissues |
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Term
| in placentation, embryonic tissues |
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Definition
-cells develop from inner cell mass and line trophoblast
-together these form the chorion and chorionic villi |
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Term
| in placentation, the chorionic villi |
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Definition
-grow into blood filled lacunae (intervillous space)
-vascularized by umbilical arteries and veins
-lie immersed in maternal blood |
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Term
| placentation maternal tissues |
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Definition
-decidua basalis
-decidua capsularis |
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Term
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Definition
| part of endometrium outside of chorionic villi |
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Term
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Definition
| part of endometrium at the uterine cavity face of the implanted embryo |
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Term
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Definition
-chorionic villi and decidua basalis
-fully formed and functional by end of 3rd month
-hormone production
-oxygen, nutrient, waste exchange |
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Term
| maternal and embryonic blood mix? |
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Definition
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Term
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Definition
-membranes of chorionic villi
-endothelium of embryonic capillaries |
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