بسم الله الرحمن الرحيم. gametogenesis female reproductive system oviduct (ovarian...
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لله ابسم الرح ميالرحمن
GametogenesisGametogenesis
Female reproductive systemFemale reproductive system
oviduct (ovarian tube)
fundusisthmus
vagina
•cervix
uterusuterus
vaginavagina
fimbria
ovary
body
Major duct
ampulla
UterusUterus•EndometriumEndometrium(Glands& vessels)(Glands& vessels)•MyometriumMyometrium•PerimetriumPerimetrium
oviduct
oviduct:oviduct:Simple columnar ciliatedSimple columnar ciliated epithelium &muscleepithelium &muscle
First week of developmentFirst week of development
(sexual cycle)(sexual cycle) Ovarian cycle & uterian cycleOvarian cycle & uterian cycle
OvulationOvulation FertilizationFertilization implantationimplantation
Sexual cycle (28 day)Sexual cycle (28 day)
Ovarian cycle uterian cycleOvarian cycle uterian cycle
sexual cyclesexual cyclepuberty:puberty:
Hypothalamous GnRH Hypothalamous GnRH hypophysishypophysis
Gonadotropin (FsH, LH)Gonadotropin (FsH, LH)
Ovarian cycleOvarian cycle
FSHFSH5-14(DAY)5-14(DAY) FolliclesFollicles growthgrowth
EstrogenEstrogen
FSH:FSH:
primordial follicule ( 15-20)primordial follicule ( 15-20)
Primary folliclePrimary follicle
Secondary follicleSecondary follicle
Graafian follicle Graafian follicle
theca &follicular cells estrogentheca &follicular cells estrogen
Ovarian cycle=Ovarian cycle=
follicular stagefollicular stage
5-14 day5-14 day
TGF-TGF-ßß ( GDF-9) ( GDF-9)
Effect of ESTROGENEffect of ESTROGEN
--Endometrium: proliferative stage (uterian Endometrium: proliferative stage (uterian cycle)= 5-14 daycycle)= 5-14 day
-thinning of cervical mucus: passage of sperm-thinning of cervical mucus: passage of sperm
-Hypophysis: LH-Hypophysis: LH
FSHFSH
Ovary: Follicular stageOvary: Follicular stage
(Estrogenic phase)(Estrogenic phase)
Uterus:Proliferative stageUterus:Proliferative stage
(Progestronic phase)(Progestronic phase)
LH
Ovarian cycle (mid cycle)Ovarian cycle (mid cycle)
LHLH
14 DAY14 DAY OvulationOvulation
Effect of LHEffect of LH
LH
ovulation
Follicle discharged (ovulation)Follicle discharged (ovulation)
LH:LH: Graafian follicle (stigma)Graafian follicle (stigma)
Barrier: connective tissue, junctional Barrier: connective tissue, junctional epitheliumepithelium
(collagenase, prostaglandin)(collagenase, prostaglandin)
ovulation ovulation
ovulationovulation
Side effectSide effect Middle pain, Middle pain,
Basal temperatureBasal temperature
Fail ovulationFail ovulation
==low concentration of Gonadotropin low concentration of Gonadotropin
gonadotropin stimulation:gonadotropin stimulation:
Multiple ovulationMultiple ovulation Multiple pregnancies Multiple pregnancies
OvulationOvulation1-effect of LH1-effect of LH
A- complete meiosis I A- complete meiosis I
B-initiate meiosisII B-initiate meiosisII
(maturation promoting factor)(maturation promoting factor)
started 2th meiotic division started 2th meiotic division
Produce: First polar bodyProduce: First polar body
Follicular dischageFollicular dischage
Oocyte ,cumulus oophorousOocyte ,cumulus oophorous
(first row= corona radiata)(first row= corona radiata)
22--effect of LHeffect of LH
LH:(remain of follicle)LH:(remain of follicle)
follicular cell +theca interna (vascularized)follicular cell +theca interna (vascularized)
Corpus luteum ProgesteroneCorpus luteum Progesterone
Uterus(secretory or progestronal phase)Uterus(secretory or progestronal phase)
Corpus leuteumCorpus leuteum (un-fertilization) (un-fertilization)
Corpus leuteum( 9 days) Corpus leuteum( 9 days) progesteronprogesteron
corpus albicanscorpus albicans
Progesteron decrease Progesteron decrease
Menestrual period(1-5day= bleeding)Menestrual period(1-5day= bleeding)
Secodary oocyte: die 12-24 hours after Secodary oocyte: die 12-24 hours after ovulationovulation
Corpus leuteum Corpus leuteum Graviditates( pregnancy)Graviditates( pregnancy)
(fertilization (fertilization))Trophoblast (initial placenta) HCG Trophoblast (initial placenta) HCG
(Human chorionic gonadotropin)(Human chorionic gonadotropin)
Corpus luteum progesteronCorpus luteum progesteron
After ovulation(15-28)After ovulation(15-28)
Uterus : secretory phase
Ovary: protestational phase
oocyteoocyte
Metaphase2Metaphase2 Comolus oopherusComolus oopherus Corona radiataCorona radiata
fimberiafimberia
Light weightLight weight
Male gamete= spermatozoaMale gamete= spermatozoa
fertilizationfertilization
LocationLocation: : ampullaampulla
ovarian barrierovarian barrierCorona radiataCorona radiata,,
Zona pellucidaZona pellucida , ,
OocyteOocyte
Sperm reaction
Sperm reactionSperm reaction
1-Capacitation Reaction1-Capacitation Reaction
2-Acrosomal reaction2-Acrosomal reaction
Capacitation ReactionCapacitation ReactionEpididymis:Epididymis:
glycoprotein coat & seminal plasma proteinglycoprotein coat & seminal plasma protein
Duration: 7 hoursDuration: 7 hours
Phase I: penetration to corona radiatePhase I: penetration to corona radiate
Phase IIPhase IIpenetration of zona pellucidapenetration of zona pellucida Attach by: PROTEIN zp3Attach by: PROTEIN zp3
A-Acrosomal reactionA-Acrosomal reaction
acrosomal enzyme (acrosin, trypsin-like acrosomal enzyme (acrosin, trypsin-like enzyme)enzyme)
B-cortical reaction (zonal reaction)B-cortical reaction (zonal reaction)
Chang structure of ZPChang structure of ZP
Phase IIIPhase IIIFused: two plasma membrane of oocyte & Fused: two plasma membrane of oocyte & spermsperm
))integrins & disintegrinsintegrins & disintegrins((
Result: prevent polyspermyResult: prevent polyspermy
polyspermypolyspermy
FertilizationFertilization
--disappeared acrosomal capdisappeared acrosomal cap
--head & tail of sperm enter to oocytehead & tail of sperm enter to oocyte
--plasma membrane remain in the oocyte plasma membrane remain in the oocyte surfacesurface
second meiotic divisionsecond meiotic division
finished 2th meiotic division definitive finished 2th meiotic division definitive oocyteoocyte
=second polar body=second polar body
nucleus: vesicular = female pronucleus (22+x)nucleus: vesicular = female pronucleus (22+x)
metabolic activation of eggmetabolic activation of egg
Main result of fertilizationMain result of fertilization--restoration of diploid number of restoration of diploid number of
chromosomeschromosomes
--determination of sexdetermination of sex
--initiation of cleavageinitiation of cleavage
CleavageCleavage
ZygoteZygote
Balstomere Balstomere
MorullaMorulla
Balstocyst formationBalstocyst formationBlastocyst-blastoceleBlastocyst-blastocele
BalstocystBalstocystCompaction(3 division)Compaction(3 division)
- - inner cell mass embryoinner cell mass embryo- outer cell mass placentaouter cell mass placenta- zona pellucida disappearedzona pellucida disappeared- implantationimplantation
end of 1th weekend of 1th week
zygote morulla balstocyst stageimplantation
implantationimplantation
Attachment:Attachment: Blastocyst (L-selectin)Blastocyst (L-selectin) Epithelium of uterus (carbohydrate Epithelium of uterus (carbohydrate
receptor)receptor)Penetration:Penetration: Trophoblast: integrinTrophoblast: integrin1.1. Laminin receptor attachLaminin receptor attach2.2. Fibronectin receptor migrationFibronectin receptor migration
implantationimplantationTimeTime: 6th day: 6th day
Uterian cycleUterian cycle
abnormal zygoteabnormal zygoteabortion: early pregnancy (2-3 week after abortion: early pregnancy (2-3 week after fertilization)fertilization)
50%50% of pregnancy: spontaneous abortionof pregnancy: spontaneous abortion = =reduce Congential malformationreduce Congential malformation
Malformation: 2.3% 12%Malformation: 2.3% 12%
infertilityinfertilityRate :15-30% of couplesRate :15-30% of couples
Male infertilityMale infertility::
--Insuficient number of spermInsuficient number of sperm
--Poor motilityPoor motility
Female infertilityFemale infertility::
--Occluded oviduct (pelvice inflammation)Occluded oviduct (pelvice inflammation)
--AbsenceAbsence ovulation ovulation
Infertility & fertilityInfertility & fertilityIn vitro fertilization (IVF)In vitro fertilization (IVF)
Gamete interafallopian transfer (GIFT)Gamete interafallopian transfer (GIFT) Zygote intrafallopian transfer (ZIFT)Zygote intrafallopian transfer (ZIFT)
Intracytoplasmic sperm injection (ICSI)Intracytoplasmic sperm injection (ICSI)
In vitro fertilization (IVF)In vitro fertilization (IVF)
Transfer: embryoTransfer: embryo
Gonadotropin : stimulateGonadotropin : stimulate
Oocyte: late stages of first meioticOocyte: late stages of first meiotic
Gamete interafallopian transfer Gamete interafallopian transfer (GIFT)(GIFT)
oocyte & sperm into ampullaoocyte & sperm into ampulla
Zygote intrafallopian transfer (ZIFT)Zygote intrafallopian transfer (ZIFT)
Oocyte fertilizationOocyte fertilization: ampullary region: ampullary region
Intracytoplasmic sperm injection (ICSI)Intracytoplasmic sperm injection (ICSI)
Male infertility: Oligospermia & azoospermiaMale infertility: Oligospermia & azoospermia
Contraceptive methodsContraceptive methods(barrier techniques)(barrier techniques)
11--barrier techniquebarrier technique
22--contraceptive pillcontraceptive pill
33--depo depo –– provera: progestin compound provera: progestin compound
44--intrauterine device (IUD)intrauterine device (IUD)
55--drug Ru-486drug Ru-486
66--vasectomy & tubal ligationvasectomy & tubal ligation
barrier thechnicbarrier thechnic
- -MaleMale
femalefemale
11--condomcondom
malemale::
condom: made of latex cover the peniscondom: made of latex cover the penis
- -chemical spermicideschemical spermicides
FemaleFemale::
Condom: Condom: made of polyurethane cover the vaginamade of polyurethane cover the vagina
22--placed in vagina includeplaced in vagina include-diaphragm-diaphragm
-cervical cap-cervical cap
-contraceptive sponge-contraceptive sponge
spongediaphragm cap
--contraceptive pillcontraceptive pill--combination of estrogen and progesterone combination of estrogen and progesterone
(progestin)(progestin)
--inhibit: inhibit: ovulationovulation
44--depo – provera depo – provera (progestin compound)(progestin compound)
--implanted sub-dermally or intramuscularlyimplanted sub-dermally or intramuscularly
--prevent ovulation for 5 years or 23 monthsprevent ovulation for 5 years or 23 months
55--intrauterine device (IUD)intrauterine device (IUD)--placed: uterin cavityplaced: uterin cavity
--mechanism: not clearmechanism: not clear
66--drug Ru-486drug Ru-486Cause: abortionCause: abortion
mechanism: anti progesterone agentmechanism: anti progesterone agent
77--vasectomy & tubal ligationvasectomy & tubal ligation
--reversiblereversible
Structure of uterusStructure of uterusWallWall::
--EndometriumEndometrium
--MyometriumMyometrium
--PerimetriumPerimetrium
Puberty: changes of EndometriumPuberty: changes of Endometrium
Sexual phaseSexual phase
==2828 daysdaysThree phasesThree phases::
11--Follicular (proliferative phase)Follicular (proliferative phase)
22--Secretory (progestational phase)Secretory (progestational phase)
33--Menstrual phaseMenstrual phase
11--Follicular (proliferative phase)Follicular (proliferative phase)
Time: end of menestual phaseTime: end of menestual phase
Influence: EstrogenInfluence: Estrogen
growth of ovarian folliculegrowth of ovarian follicule
22--Secretory (progestational phase)Secretory (progestational phase)
TimeTime: 2-3 days after ovulation: 2-3 days after ovulationResponse: progesteroneResponse: progesterone
Menstrual cycleMenstrual cycle
Time: 3-4 daysTime: 3-4 days
Endometrium: shedding( spongy , compact Endometrium: shedding( spongy , compact layers) but Remain: basal layerlayers) but Remain: basal layer
Process of implantationProcess of implantationCarbohydrate receptor+ L-selectin of Carbohydrate receptor+ L-selectin of
epithelial cellepithelial cellTrophoblast:Trophoblast: integrin integrin
Integrin:attachment trophoblast to laminin Integrin:attachment trophoblast to laminin in extracellular matrix in uterusin extracellular matrix in uterus
capacitationcapacitation
ectopicectopic
Acrosomal reaction-sperm motilityAcrosomal reaction-sperm motility
Effect of Effect of EstrogenEstrogenSecret by: Follicular cell & theca Secret by: Follicular cell & theca
cellcell
11 - -proliferate of endometrium proliferate of endometrium (follicular phase)(follicular phase)
**22--mucous mucous ……., sperm., sperm …………..
33--stimulate of pituitary gland stimulate of pituitary gland LH LH
Polar bodyPolar body