Animal Science/Dairy Science 434Lecture 1Learning ObjectivesEquine - HorseBovine - CattleOvine - SheepPorcine - Swine - PigAvian - ChickenPowerPoint PresentationSlide 10Broad LigamentSlide 12Ovary - Primary Sex OrganOvarySlide 15Slide 16Slide 17Slide 18Slide 19Slide 20Slide 21Tertiary FollicleFollicular Blood SupplySecondary Sex Organ: A Series of Tubes to Convey the Oocyte/Embryo/Fetus to the OutsideFunctions of OviductSlide 26OviductOviduct HistologyFunctions of the UterusUterus (bovine)Slide 31Uterine HistologySlide 33Functions of the CervixSlide 35CervixFunctions of the VaginaVaginaPosterior Vaginal HistologyFunction of External GenitaliaExternal Genitalia of the CowPhenomena For FertilitySlide 43Updated:01/13/19 Animal Science/Dairy Science 434Animal Science/Dairy Science 434Reproductive PhysiologyLecture 1: Female AnatomyReproductive PhysiologyLecture 1: Female AnatomyUpdated:01/13/19 Lecture 1Lecture 1Female Reproductive Tract AnatomyFemale Reproductive Tract AnatomyUpdated:01/13/19 Learning Objectives•To be able to describe the female reproductive system in cattle.»Structure»FunctionUpdated:01/13/19 Equine - HorseFemale MareMale StallionUpdated:01/13/19 Bovine - CattleFemale CowMale BullUpdated:01/13/19 Ovine - SheepFemale EweMale RamUpdated:01/13/19 Porcine - Swine - PigFemale SowMale BoarUpdated:01/13/19 Avian - ChickenFemale HenMale RoosterUpdated:01/13/19 VulvaVaginaCervixUterine BodyClitorisUrethraBladderUterine HornUterine HornOvaryOvaryOviductOviductUpdated:01/13/19 UterusOvaryOviductBroad LigamentCervixBladderPelvisVaginaVulvaRectumUpdated:01/13/19 Broad Ligament•connective tissue sheet which supports and suspends the reproductive tractUpdated:01/13/19 Broad LigamentmesosalpinxmesosalpinxmesovariummesovariummesometriummesometriumUpdated:01/13/19 Ovary - Primary Sex Organ•Functions»Hormonal•Estrogen•Progesterone»Female gamete•OocyteUpdated:01/13/19 OvaryCorpus LuteumCorpus LuteumFollicle- Estrogen, OocyteProgesteroneProgesteroneUpdated:01/13/19 Blood and lymphaticVessels & nervesHilus}OvaryGerminalEpitheliumTunicaAlbugineaTunicaAlbuginea85% of Ovarian Cancers85% of Ovarian CancersCortexMedullaUpdated:01/13/19 Tertiary folliclePrimary follicleTertiaryfollicleEgg nestSecondary follicleAtretic follicleCorpus albicansCorpus luteumCorpushemorrhagicumRuptured follicle(ovulation)Updated:01/13/19 Tertiary folliclePrimary follicleTertiaryfollicleSecondary follicleAtretic follicleCorpus albicansCorpus luteumCorpushemorrhagicumRuptured follicle(ovulation)Updated:01/13/19 Tertiary folliclePrimary follicleTertiaryfollicleSecondary follicleAtretic follicleCorpus albicansCorpus luteumCorpushemorrhagicumRuptured follicle(ovulation)Updated:01/13/19 Tertiary folliclePrimary follicleTertiaryfollicleSecondary follicleAtretic follicleCorpus albicansCorpus luteumCorpushemorrhagicumRuptured follicle(ovulation)Primordial Follicle Primary Follicle Secondary follicle Tertiary follicle Follicle Cells•Flattened cells surround oocyte•Increase in size of oocyte andheight of follicular cells•Surrounded by severallayers of follicular cellsNucleusOoplasmaFollicular Cells•Follicle forms a fluidfilled cavity•Differentiation of cell layersin the follicle wallOocyteAntrumUpdated:01/13/19 AntrumTheca ExternaTheca InternaGranulosaCumulus OophorusOocyte(Follicular Fluid)Tertiary FollicleBasementMembraneUpdated:01/13/19 Tertiary FollicleGranulosaTheca InternaCumulusOophorusAntrumOocyteUpdated:01/13/19 Follicular Blood SupplyTheca interna cellsGranulosa cellsFollicularfluidCapillarynetworkBasement MembraneUpdated:01/13/19 Circular smoothmuscle layerCircular smoothmuscle layerLongitudinal smoothmuscle layerLongitudinal smoothmuscle layerMuscularisMuscularisSerosaSerosaSubmucosaSubmucosaLumenLumenMucosaMucosaSecondary Sex Organ: A Series of Tubes to Convey the Oocyte/Embryo/Fetus to the OutsideSecondary Sex Organ: A Series of Tubes to Convey the Oocyte/Embryo/Fetus to the OutsideUpdated:01/13/19 Functions of Oviduct•Gamete Transport»Sperm»Oocyte•Supports early embryo development•Transport of embryo to uterusUpdated:01/13/19 OviductUterine HornUtero-Tubal JunctionAmpullary-IsthmicJunctionIsthmusAmpullaInfundibulum(20 - 30 cm2)FimbriaOstiumFollicleOvaryCumulus Oophorusand OocyteUpdated:01/13/19 OviductMesosalpinxMesosalpinxUT JunctionUT JunctionUterine HornUterine HornIsthmusIsthmusAmpullaAmpullaUpdated:01/13/19 Oviduct Histology•Ciliated Columnar•Nonciliated ColumnarMucosaUpdated:01/13/19 Functions of the Uterus•Muscle contractions »Transport sperm»Expel fetus and placenta•Absorption and phagocytosis•Partially prepares sperm for fertilization»capacitation•Provides environment for embryo and fetal growth•Hormone production»Prostaglandin F2 productionUpdated:01/13/19 Uterus (bovine)•Bicornuate»poorly to moderately developed uterine horns»uterine body»one cervixcervixbodyhornUpdated:01/13/19 CarunclesUpdated:01/13/19 Uterine HistologyPerimetriumEndometriumMyometriumEndometrialGlandsUpdated:01/13/19 MucosaSubmucosaMyometriumEndometriumEndometrialGlandPerimetriumUterine HistologyUpdated:01/13/19 Functions of the Cervix•Transport of sperm•Barrier to sperm (species dependent) •Reservoir for sperm •Blocking bacterial invasion during pregnancy•Birth canalUpdated:01/13/19 Cervix•Cervix is composed of thick connective tissueCOWCow has 4-5annular ringsUterine BodyVaginaExternal Cervical OsInternal Cervical Os•Mucus is secreted near the time of breeding and ovulation.Updated:01/13/19 CervixCervicalRingCervicalRingCervicalRingCervicalRingFornixFornixFornixFornixFornixFornixAnterior Vagina Anterior VaginaCOWEWEExternal OsExternal OsInternal OsInternal OsUpdated:01/13/19 Functions of the Vagina•Copulatory organ•Glands secrete lubrication•Birth canal•Glands secrete pheromonesUpdated:01/13/19 VaginaAnterior VaginaPosterior Vagina (Vestibule)ColumnarEpitheliumStratifiedSquamousEpitheliumSubmucosaUrethraSubmucosaMucosaFornixFornixVulva-Vaginal SphincterVulva-Vaginal SphincterCervixUpdated:01/13/19 Posterior Vaginal HistologyStratified SquamousEpitheliumMucosaMucosaSubmucosaSubmucosaUpdated:01/13/19 Function of External Genitalia•Labia»Closes entrance to vagina•Clitoris»Female sensory organUpdated:01/13/19 External Genitalia of the CowAnusLabiaClitorisLabiaVulvaUpdated:01/13/19 Phenomena For Fertility•vagina dentata - a vagina with teeth•female bedbug - no vagina•hysterectomy - if woman went to long without becoming pregnant
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