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Female Reproductive Tract
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Broad Ligament suspends the female reproductive tract in the pelvic cavity has three portions
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Ovary release ova- egg 50, ,000 potential eggs present at birth release hormones progesterone estrogen
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Oviduct (fallopian tube) connect ovary to uterine horns
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Oviduct three portions infundibulum ampulla isthmus
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Oviduct ova remains in oviduct for 3-6 days 1/8 inch in diameter
20 cm. Long in a cow
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Uterus passageway for sperm cells from cervix to oviduct
produce histotroph - nourishes developing embryo until placenta forms expel fetus at parturition
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Parturition birth
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Uterus site of pregnancy
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Cervix located between uterus and vagina
forms a barrier between the internal and external environment thick walled, many ringed organ
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Vagina point where urinary and reproductive tracts join
receptacle for semen passageway for fetus
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Vulva outer opening of reproductive tract
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Clitoris sensory organ
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Hormones estrogen progesterone FSH LH HCG
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Estrogen produced by the follicle in non pregnant female and placenta in late pregnancy induce estrus - heat responsible for female contour
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Estrogen develop duct system of mammary gland
causes edema - retention of water increases muscle development
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Progesterone hormone that keeps female out of heat relaxes uterus
secretion of histotroph
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FSH follicle stimulating hormone development of follicles on ovary
ova are released from follicle
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FSH indirectly responsible for estrogen production
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LH Lutenizing hormone causes ovulation
ova is released from the follicle
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HCG Human Chorionic Gonadotropin
produced by the placenta of pregnant women early in pregnancy
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HCG used on cows that are cystic - won’t ovulate causes ovulation
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Ovulation release of ova from ovary
follicle develops - blister on ovary follicle bursts - egg is released
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Ovulation a hole is left where the ova was
forms a C.L. (Corpus Luteum) - yellow body
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C.L. produces progesterone
if female becomes pregnant a new follicle does not burst and estrogen production is reduced
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Gestation length of time from conception till birth cows - 281 days
pigs days (3 mos, 3 weeks, 3 days) horses days
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Gestation sheep days goats days
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