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FEMALE REPRODUCTIVE SYSTEMOVARYEncapsulated organ (s. cuboidal epithelium = mesothelium, tunica albuginea =c.t.)Hilus3454400-834390Stages of ovarian follicles. Fig 23.2, Ross & Pawlina, 6th ed.Stages of ovarian follicles. Fig 23.2, Ross & Pawlina, 6th ed. – entry/exit of blood vesselsCortex and medullaCortex – mesenchymal stroma (CT) + folliclesMedulla – mesenchyme (CT), highly vascularized with spiral (helicine) arteriesFollicles contain developing ovaPrimordial Ova ~30 ?mSimple squamous follicle cellsPrimary = growing Cuboidal follicle cellsZona pelucida developsEarly→Late = follicle: simple→stratified Stratified = stratum granulosumTheca developsSecondary (Antral)Ova ~125 ?mFluid filled antra, cumulus oophorus and corona radiataTheca: interna (cuboidal, steroid secreting), externa (dense irregular CT)Mature (Graffian): usually 1/cycle, single antrum, takes up whole cortex (~10 mm)Atretic follicles: at any stage. (can be difficult to distinguish from fixation artifact)Corpus Luteum = large, yellow bodyGranulosa luteal cells = secretory, interior foamy cellsTheca luteal cells (T. interna, C.T.) – bring in BVsCorpus Albicans = scar tissue, dense white body in medulla2038350245110020364451727200FALLOPIAN TUBE (look alike = vas deferens, ureter)Mucosa: 2 cell types; s.columnar = Peg cells (secretory) + s. columnar ciliated cells Lamina propria (CT)Muscularis: 2 layers sm muscle; inner = circ; outer = longSerosa: s. squamous438150047625Uterine layers. Fig 23.15, Ross & Pawlina, 6th ed.00Uterine layers. Fig 23.15, Ross & Pawlina, 6th ed.01114425Wall thickness increases from fimbriae to uterusLuminal diameter decreases from fimbriae to uterus# folds decreases from fimbriae to uterus0Wall thickness increases from fimbriae to uterusLuminal diameter decreases from fimbriae to uterus# folds decreases from fimbriae to uterusUTERUSEndometriumFunctionalis = Compactum (surface region with pools of blood) Spongiosum (glands)Basalis = arcuate arteries give rise to spiral arteries; base of glandsMyometrium= 3 layers of sm muscle in swirlsPerimetrium = Serosa= s. squamous epithelium and 47625133985Early proliferative: endometrium = s. col + mitotic cellsLate proliferative: endometrium= functionalis increases 2 foldstraight glands + mitotic cellsGlands after ovulation, estrogen + progesterone:Early secretory: endometrial glands = s. col, basal glycogen vacuoles deep corkscrew glandsLate secretory:Endometrial glands = s. col, apical glycogen vacuolesSaw tooth glands00Early proliferative: endometrium = s. col + mitotic cellsLate proliferative: endometrium= functionalis increases 2 foldstraight glands + mitotic cellsGlands after ovulation, estrogen + progesterone:Early secretory: endometrial glands = s. col, basal glycogen vacuoles deep corkscrew glandsLate secretory:Endometrial glands = s. col, apical glycogen vacuolesSaw tooth glandsGlands under estrogen control:CHANGES IN UTERUS DURING MENSTRUAL CYCLE ................
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