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From The Menstral Cycle To Birth
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The Hypothalamus releases the gonadotropin-releasing hormone(GnRH). This hormone actives the pituitary gland to release the follicle-stimulating hormone(FSH) and the luteining hormone(LH). FSH is carried by the blood to the ovaries, where the follicle development is stimulated. The follicles secre ....
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.... and by the sixth day enters the uterus. If the embryo starts to develop in the oviduct instead, it would parish from lack of nutrients. Once in the uterus this cluster of cells becomes the blastocyst. It attaches itself to the endometrium. This process is known as implantation. The amnion, which is a fluid filled sac, develops to protect the embryo from infection, dehydration and impact. Cells of the endometrium and embryo combine to form the placenta. The placenta is attached to the mother's u.... |
| Number of words: 478 |
Approximate pages: 2 |
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