Female Reproductive Tract Original Power Point Created by
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 • 50, 000 - 150, 000 potential eggs present at birth • release hormones • progesterone • estrogen
Oviduct • (fallopian tube) • connect ovary to uterine horns
Oviduct • three portions • infundibulum • ampulla • isthmus
Oviduct • ova remains in oviduct for 3 -6 days • 1/8 inch in diameter • 20 cm. Long in a cow
Uterus • passageway for sperm cells from cervix to oviduct • produce histotroph - nourishes developing embryo until placenta forms • expel fetus at parturition
Parturition • birth
Uterus • site of pregnancy
Cervix • located between uterus and vagina • forms a barrier between the internal and external environment • thick walled, many ringed organ
Vagina • point where urinary and reproductive tracts join • receptacle for semen • passageway for fetus
Vulva • outer opening of reproductive tract
Clitoris • sensory organ
Hormones • estrogen • progesterone • FSH • LH • HCG
Estrogen • produced by the follicle in non pregnant female and placenta in late pregnancy • induce estrus - heat • responsible for female contour
Estrogen • develop duct system of mammary gland • causes edema - retention of water • increases muscle development
Progesterone • hormone that keeps female out of heat • relaxes uterus • secretion of histotroph
FSH • follicle stimulating hormone • development of follicles on ovary • ova are released from follicle
FSH • indirectly responsible for estrogen production
LH • Lutenizing hormone • causes ovulation • ova is released from the follicle
HCG • Human Chorionic Gonadotropin • produced by the placenta of pregnant women early in pregnancy
HCG • used on cows that are cystic won’t ovulate • causes ovulation
Ovulation • release of ova from ovary • follicle develops - blister on ovary • follicle bursts - egg is released
Ovulation • a hole is left where the ova was • forms a C. L. (Corpus Luteum) yellow body
C. L. • produces progesterone • if female becomes pregnant a new follicle does not burst and estrogen production is reduced
Gestation • length of time from conception till birth • cows - 281 days • pigs - 114 days (3 mos, 3 weeks, 3 days) • horses - 336 days
Gestation • sheep - 148 days • goats - 151 days
- Slides: 27