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Female Reproductive Tract

Female Reproductive Tract. Original Power Point Created by Linda Rist Modified by Georgia Agricultural Education Curriculum Office June 2002. Broad Ligament. suspends the female reproductive tract in the pelvic cavity has three portions. Ovary. release ova- egg

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Female Reproductive Tract

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  1. Female Reproductive Tract Original Power Point Created by Linda Rist Modified by Georgia Agricultural Education Curriculum Office June 2002

  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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