扬州大学：《组织胚胎学》课程教学课件（讲稿）女性生殖系统 Female reprod system

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Famale Reproductive System

Component of femalereproductive systemGenital glandsOvary: produce ovum, secrete female sex hormonesGenital ductsUterine tube (oviduct,fallopian tube):duct for fertilized ovum (zygote) passing through,place wherefertilization takesplaceUterus:organ wherethefetus grow upVagina (self-study)External genitaliaBreast (self-study)

Component of female reproductive system Genital glands Ovary: produce ovum, secrete female sex hormones Genital ducts Uterine tube (oviduct, fallopian tube): duct for fertilized ovum (zygote) passing through, place where fertilization takes place Uterus: organ where the fetus grow up Vagina (self-study) External genitalia Breast (self-study)

UterusFallopiantubeCervixOvaryVaginaEndometrium

1. General structure of Ovarylocated on either sides of uterus in pelvic cavityCapsuleSuperficial epithelium (a layer of squamous or cuboidal cell)Tunica albuginea (DCT)Cortexdifferent stages follicles* Corpus luteum* C.T. with more spindle- shaped stroma cells andreticular cellsMedullaL.C.T containing more elastic f. & blood vesselsHilum: SM and hilus cell

1. General structure of Ovary located on either sides of uterus in pelvic cavity Capsule Superficial epithelium (a layer of squamous or cuboidal cell) Tunica albuginea (DCT) Cortex * different stages follicles * Corpus luteum * C.T. with more spindle- shaped stroma cells and reticular cells Medulla L.C.T containing more elastic f. & blood vessels Hilum: SM and hilus cell

初级卵泡原始卵泡Atretic follicle Secondary folliclePrimaryfolliclePrimordial成热卵泡follicleMaturefollicleCumult黄体Corpusluteum

Slide151Imagei1/7Ovary(Cat)-LowMagFolliclesofvarying stages of developmentare locatedinthecortexThemedullacontainsbloodvesselslymphatics&loosectAtthislowmag.largefolliclessomewithoocvtescanbeseeneasily.Smallerfolliclesarelocated neartheperiphery

2. Different phases.--childhood:before development- all follicleareprimordial follicle(700,000-2,000,000)---puberty: the abilityfor reproducebegintodevelop(40,000 primordial follicle)---sexual maturity: (400-500 are released) different stage of follicles can be seenhave a cyclic change-menstrual cycle--menopause (climacteric): the ability ofreproduction decrease---senescence: all follicle disappear, replaced by CT

2. Different phases -childhood: before development- all follicle are primordial follicle(700,000-2,000,000) -puberty: the ability for reproduce begin to develop(40,000 primordial follicle) -sexual maturity: (400-500 are released) • different stage of follicles can be seen • have a cyclic change-menstrual cycle -menopause (climacteric) : the ability of reproduction decrease -senescence: all follicle disappear, replaced by CT

3. Development and maturation offollicle*component of a follicleprimary oocytefollicular cells*stages offolliclesPrimordial follicleGrowing follicleprimary folliclesecondary follicleMaturefollicle

3. Development and maturation of follicle *component of a follicle primary oocyte follicular cells *stages of follicles Primordial follicle Growing follicle primary follicle secondary follicle Mature follicle

(1Primordialfollicletheearliest stage offolliclelocatedin theperipheral cortex1millionatbirth,40,000beforepuberty

(1)Primordial follicle the earliest stage of follicle located in the peripheral cortex 1 million at birth, 40,000 before puberty

Structure> primary oocyte(in prophase of 1st meiotic division).30uminDlarge, vesicular nucleus with prominent nucleoluslight eosinophilic cytoplasm> follicular cell:a single layer of flattened cell surrounding the primaryoocyte

Structure  primary oocyte ( in prophase of 1st meiotic division) •30um in D •large, vesicular nucleus with prominent nucleolus. •light eosinophilic cytoplasm  follicular cell: a single layer of flattened cell surrounding the primary oocyte