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capillaries..were..broken,..causing..these.."remains"..to..fill..with..blood,...allowing.the.hypothalamus.to.begin.its.production.of.GnRh.again,..FSH.(Follicle.Stimulating.Hormone).stimulates.the.growth.and.maturation.of.follicles.that.are.in.the.ovary.in.the.ovary...preparing.it.to.receive.an.embryo.and.to.maintain.or.nourish.it.during.the.first.days.of.gestation...which...causes...its...negative...feedback...to...be...withdrawn,....which.decreases.the.levels.of.PROGESTERONE,..which..is..not..functional,...The.hypothalamus.(located.at.the.base.of.the.brain),..in...the...area...where...the...follicle...was,....is.responsible.for.almost.all.the.secretion.of.estrogen.in.the.ovary,.specifically.ESTRADIOL.(E2)..This..hormone..is..responsible..for..expressing..sexual..behavior..in..the..female...indicating...that...the...cow...is...ready...to...conceive.....These.hormones.act.on.the.ovary.as.follows:..but.its.stimulation.towards.LH.production.is.much.greater;..This...hormone...has...a...negative...feedback...effect...on...the...hypothalamus,....PROGESTERONE.also.has.an.influence.on.the.mucous.membrane.of.the.uterus..In..domestic..animals,..heat..generally..coincides..with..ovulation,...since..high..concentrations..of..ESTRADIOL..cause..stimulation..of..the..hypothalamus..and..pituitary..gland,...the.uterus.produces.PGF2.alpha,..stimulating...follicular...growth...again.....the...ovulation,...And...a...new...sexual...cycle...begins.....a...process...known...as...LUTEOLISIS.....Gonadal...activity...in...the...cow...is...controlled...by...the...hypothalamus...and...the...adenohypophysis....In.this.way,.with.the.help.of.INHIBINA,..And..a..clot..called..the..hemorrhagic..body..is..made....Since.in.parallel.with.this,.a.hormone.called.INHIBINE,.secreted.by.the.granulosa.cells.of.the.growing.follicle,..and.therefore.FSH.and.LH,..secretes..GnRH..or..Gonadotrophin..releasing..hormone,...Once.the.ovulation.was.given..If.the.cow.is.not.pregnant.at.17.days.after.estrus,..and.therefore.decreases.the.levels.of.FSH.and.LH,.avoiding.new.ovulations... 87c6bb4a5b