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Human Anatomy and Physiology
Reproduction in females
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Reproduction
Production of egg and nutrition of embryo Hormones: estrogen (estradiol), progesterone,
gonadotropic hormones 2M eggs at birth, 3 - 400,000 at puberty and 400
released during lifetime Menopause - follicles degenerate
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Egg production (oogenesis)
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Ovarian cycle
Primordial follicle (1)
Primary follicle (2)
Secondary follicle (3-5)
Vesicular follicle (6)
Secondary oocyterelease (7)
Corpus luteum (8)
Corpus albicans (9)
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Ovarian cycle
Two Phases Follicular (variable) Luteal (fixed - always 14 days duration)
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Ovarian cycle control
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Gonadotropic hormones Fluctuations in levels throughout the
ovarian cycle
Time (days)
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Ovarian hormones Fluctuations in levels throughout the
ovarian cycle
Time (days)
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Uterine cycle Fluctuations in thickness of uterine wall