Medicine powerpoint

Jun 29th, 2015
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Kaplan University
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Comprehensive power points in gynecology, internal medicine, ophthalmology, pharmacology, etc

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MENSTRUAL AND SPERMATOGENIC CYCLEMenstruation is a function peculiar to women and hiener apes.It may be regarded as periodic preparations for fertilization and pregnancy definition.Periodic and cyclical shadding and uterine mucosa ( eudometrium ) accompanied by the loss of blood.The length of the cycle is notoriously variable but averages around 28 days from the start of one menstrual period to the start of the next (interval).Ovarian Cycle, from birth, there are many primodial follicles each containing an immature ovum under the ovarian capsule.At the start of each cycle, several of these follicles enlarge and a cavity containing follicles forms around the ovum Cantrum formation.In humans, usually one of the follicles in one ovary starts to grow rapidly on around the sixth day and becomes the dorninant follicle while the others repress, forming atretic follicles.The process of dominant follicle is obscure but is perhaps related to the ability of the follicle to secrete oestrogen which is needed for fine maturation.The primary source of circulating oestrogen is the granulose cells of the ovaries, but the cells of these internal of the follicles, which secrete androgens that are aromatized to oestrogen be the granulose cells.About 14th day of the cycle, the distanced follicle is extruded into the abdominal cavity in the process of ovulation, is picked by the firmtonal and of the lubes and if not fertilized, out htrough the virgina.The follicle that matures at

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