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Reproductive System (Ovarian Follicles (Primordial Follicle--consists of…
Reproductive System
Ovarian Follicles
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Secondary Follicle--contains primary oocyte, many granulosa cells, & fluid-filled space>>antrum
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Fetal Development Stages
Weeks 9-12--reproductive organs develop, brain enlarges, body grows longer, kidneys develop, palate forms, Avg. weight>>28g
Weeks 13-16--body rapidly grows, limbs become proportionate, brain and skull enlarge
Avg. weight>>170g
Weeks 17-20--muscle movements are stronger, lanugo and vernix caserosa cover skin, limbs almost finished growing, brain & skull still growing
Avg. weight>>434g
Weeks 21-38--body gains most weight, fat is deposited, eyelids open, blood cells form in marrow
Avg. weight>>2.5-4.6 kg
Uterine Tubes
Infundibulum--free funnel shaped, encloses the ovary only @ time of ovulation
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Ovarian Cycle
Ovulation--day 14, releasing of secondary oocyte from vesicular follicle
Luteal Phase--days 15-18 of cycle, when remaining follicle cells are ruptured in the vesicular follicle becoming the corpus luteum.
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Seminiferous Tubules--contain cells>>sustentacular which support(hold upright) & germ cells that produce sperm cells continuously
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Prostate Gland--compact organ weighing 20g, shaped like a walnut
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FSH(follicle stimulating hormone)--stimulates development of ovarian follicles during follicular stage
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Progesterone & Estrogen--secreted by corpus luteum, stimulate and support uterus lining for possible implantation