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Female Reproductive Tract

Female Reproductive Tract. Broad Ligament. suspends the female reproductive tract in the pelvic cavity has three portions. Ovary. release ova- egg 50,000 - 150,000 potential eggs present at birth release hormones progesterone estrogen. Oviduct. (fallopian tube)

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Female Reproductive Tract

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  1. Female Reproductive Tract

  2. Broad Ligament • suspends the female reproductive tract in the pelvic cavity • has three portions

  3. Ovary • release ova- egg • 50,000 - 150,000 potential eggs present at birth • release hormones • progesterone • estrogen

  4. Oviduct • (fallopian tube) • connect ovary to uterine horns

  5. Oviduct • three portions • infundibulum • ampulla • isthmus

  6. Oviduct • ova remains in oviduct for 3-6 days • 1/8 inch in diameter • 20 cm. Long in a cow

  7. Uterus • passageway for sperm cells from cervix to oviduct • produce histotroph - nourishes developing embryo until placenta forms • expel fetus at parturition

  8. Parturition • birth

  9. Uterus • site of pregnancy

  10. Cervix • located between uterus and vagina • forms a barrier between the internal and external environment • thick walled, many ringed organ

  11. Vagina • point where urinary and reproductive tracts join • receptacle for semen • passageway for fetus

  12. Vulva • outer opening of reproductive tract

  13. Clitoris • sensory organ

  14. Hormones • estrogen • progesterone • FSH • LH • HCG

  15. Estrogen • produced by the follicle in non pregnant female and placenta in late pregnancy • induce estrus - heat • responsible for female contour

  16. Estrogen • develop duct system of mammary gland • causes edema - retention of water • increases muscle development

  17. Progesterone • hormone that keeps female out of heat • relaxes uterus • secretion of histotroph

  18. FSH • follicle stimulating hormone • development of follicles on ovary • ova are released from follicle

  19. FSH • indirectly responsible for estrogen production

  20. LH • Lutenizing hormone • causes ovulation • ova is released from the follicle

  21. HCG • Human Chorionic Gonadotropin • produced by the placenta of pregnant women early in pregnancy

  22. HCG • used on cows that are cystic - won’t ovulate • causes ovulation

  23. Ovulation • release of ova from ovary • follicle develops - blister on ovary • follicle bursts - egg is released

  24. Ovulation • a hole is left where the ova was • forms a C.L. (Corpus Luteum) - yellow body

  25. C.L. • produces progesterone • if female becomes pregnant a new follicle does not burst and estrogen production is reduced

  26. Gestation • length of time from conception till birth • cows - 281 days • pigs - 114 days (3 mos, 3 weeks, 3 days) • horses - 336 days

  27. Gestation • sheep - 148 days • goats - 151 days

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