11/15/2010 1 Perkembangan Morfologi dan Perkembangan Morfologi dan Fungsional janin Fungsional janin Prof R Haryono Roeshadi SpOG K Letta Sari Lintang SpOG Normal Pregnancy Normal Pregnancy • Pregnancy Pregnancy The course that the embryo and the The course that the embryo and the fetus grow in the maternal body fetus grow in the maternal body • Stages of pregnancy Stages of pregnancy 1. 1. Early pregnancy: ≤12 weeks Early pregnancy: ≤12 weeks 2. 2. Mid pregnancy: ≥13 weeks,≤27 weeks Mid pregnancy: ≥13 weeks,≤27 weeks 3. 3. Late pregnancy:≥28 weeks Late pregnancy:≥28 weeks 4. 4. Term pregnancy:≥37 weeks,<42 weeks Term pregnancy:≥37 weeks,<42 weeks Fertilization Fertilization • SPERM + EGG(OOCYTE) = ZYGOTE SPERM + EGG(OOCYTE) = ZYGOTE • The fertilization process takes about The fertilization process takes about 24 hours. 24 hours. • Sperm life = 48 hours Sperm life = 48 hours – It takes about ten hours to navigate the It takes about ten hours to navigate the female productive track, moving up the female productive track, moving up the vaginal canal, through the cervix, and vaginal canal, through the cervix, and into the fallopian tube where fertilization into the fallopian tube where fertilization begins. begins.
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Perkembangan Morfologi dan Perkembangan Morfologi dan Fungsional janinFungsional janin
Prof R Haryono Roeshadi SpOG KLetta Sari Lintang SpOG
Normal PregnancyNormal Pregnancy
•• PregnancyPregnancy
The course that the embryo and the The course that the embryo and the fetus grow in the maternal bodyfetus grow in the maternal body
•• Stages of pregnancyStages of pregnancy
1.1. Early pregnancy: ≤12 weeksEarly pregnancy: ≤12 weeks
3.3. Late pregnancy:≥28 weeksLate pregnancy:≥28 weeks
4.4. Term pregnancy:≥37 weeks,<42 weeks Term pregnancy:≥37 weeks,<42 weeks
FertilizationFertilization
•• SPERM + EGG(OOCYTE) = ZYGOTESPERM + EGG(OOCYTE) = ZYGOTE•• The fertilization process takes about The fertilization process takes about
24 hours.24 hours.•• Sperm life = 48 hoursSperm life = 48 hours
–– It takes about ten hours to navigate the It takes about ten hours to navigate the female productive track, moving up the female productive track, moving up the vaginal canal, through the cervix, and vaginal canal, through the cervix, and into the fallopian tube where fertilization into the fallopian tube where fertilization begins. begins.
capacitation → acrosome reaction → capacitation → acrosome reaction → penetrate the zona pellucida → penetrate the zona pellucida → second meiosis →zygotesecond meiosis →zygote
FERTILISASIFERTILISASI
PERKEMBANGAN SEL TELUR SAMPAI BLASTOKISTAPERKEMBANGAN SEL TELUR SAMPAI BLASTOKISTA
•• 300 million sperm enter the the 300 million sperm enter the the vagina... only 1%, 3 million, enter the vagina... only 1%, 3 million, enter the uterusuterus
•• The next step is the penetration of the The next step is the penetration of the zona pellucida, a tough membrane zona pellucida, a tough membrane surrounding the oocyte. surrounding the oocyte.
•• Penetration of the zona pellucida Penetration of the zona pellucida takes about twenty minutestakes about twenty minutes
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•• Within Within 11 hours11 hours following following fertilization, the oocyte has fertilization, the oocyte has extruded a polar body with its extruded a polar body with its excess chromosomes. The excess chromosomes. The fusion of the oocyte and sperm fusion of the oocyte and sperm nuclei marks the creation of the nuclei marks the creation of the zygote and the end of zygote and the end of fertilizationfertilization ..
Formation of EmbryoFormation of Embryo
•• ImplantationImplantation1.1. requirementrequirement1)1) Disappear of zona Disappear of zona pellucidapellucida
2)2) Formation of Formation of syncytiotrophoblastsyncytiotrophoblast3)3) Synchronized development of Synchronized development of
blastocyst and endometriumblastocyst and endometrium4)4) Adequate progesterone Adequate progesterone
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•• Placental Circulation System Begins to Placental Circulation System Begins to formform
•• 0.1 0.1 -- 0.2 mm0.2 mm•• 7 7 -- 12 days post12 days post--ovulationovulation•• Trophoblast cells engulf and destroy Trophoblast cells engulf and destroy
cells of the uterine lining creating cells of the uterine lining creating blood pools, both stimulating new blood pools, both stimulating new capillaries to grow and foretelling the capillaries to grow and foretelling the growth of the growth of the placentaplacenta..
Formation of EmbryoFormation of Embryo
2.2. ProcessProcess1)1) morula (day 3) → enter uterine morula (day 3) → enter uterine
cavity (day 4) → early cavity (day 4) → early blastocyst → late blastocyst blastocyst → late blastocyst (day 6(day 6--7) → implantation7) → implantation
Development of embryo and fetusDevelopment of embryo and fetus
•• Physiology of fetusPhysiology of fetus1.1. CirculationCirculation1)1) fetus ←→placenta ←→ materfetus ←→placenta ←→ mater2)2) 1 umbilical vein (full of oxygen), 1 umbilical vein (full of oxygen),
2 umbilical artery (lack of 2 umbilical artery (lack of oxygen)oxygen)
3)3) Mixed blood (vein and artery)Mixed blood (vein and artery)
Fetal CirculationFetal Circulation
• Fetal circulation iscomplex and differentfrom adult blood flowswith three major shunts:
• Ductus venosusForman ovaleDuctus arterosus
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Development of embryo and fetusDevelopment of embryo and fetus
Development of embryo and fetusDevelopment of embryo and fetus
2.2. HematologyHematology1)1) ErythropoiesisErythropoiesisFrom yolk sac: 3 weeksFrom yolk sac: 3 weeksFrom liver: 10 weeksFrom liver: 10 weeksFrom bone marrow and spleen: From bone marrow and spleen:
term (90%)term (90%)EPO production: 32EPO production: 32 ndnd weekweek
Development of embryo and fetusDevelopment of embryo and fetus
2)2) Fetal hemoglobinFetal hemoglobinFetal hemoglobin: early pregnancyFetal hemoglobin: early pregnancyAdult hemoglobin: 32Adult hemoglobin: 32 ndnd weekweekTerm: fetal type Hb 25%Term: fetal type Hb 25%3)3) White cellsWhite cellsLeukocytes: 8 weekLeukocytes: 8 weekLymphocytes (antibody production): 12 Lymphocytes (antibody production): 12
week, thymus and spleenweek, thymus and spleen
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Development of embryo and fetusDevelopment of embryo and fetus
3.3. Gastrointestinal tractGastrointestinal tract1)1) drink amniotic fluid: 4drink amniotic fluid: 4 thth monthmonth2)2) no proteolytic activityno proteolytic activity3)3) enzymatic deficiencies in liver: enzymatic deficiencies in liver: bilirubin is not easy to be clear.bilirubin is not easy to be clear.
Development of embryo and fetusDevelopment of embryo and fetus
4.4. KidneyKidneyIts function begins at 11Its function begins at 11--1414 thth weekweek
5)5) EndocrinologyEndocrinology1)1) Fetal thyroid: the first endocrine Fetal thyroid: the first endocrine
gland (6gland (6 thth week), synthesize week), synthesize thyroxine at 12thyroxine at 12 thth weekweek
move upward, hypertrophy of move upward, hypertrophy of cardiac musclecardiac muscle
2.2. Cardiac Output Cardiac Output increase by 30%, reach to peak at increase by 30%, reach to peak at 3232ndnd ––3434thth weekweek
3.3. Blood pressureBlood pressureearly or mid pregnancy Bpearly or mid pregnancy Bp ↓.↓.↓.↓.↓.↓.↓.↓.late late pregnancy Bp ↑ .Supine hypotensive pregnancy Bp ↑ .Supine hypotensive syndromesyndrome
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Physiologic changes in pregnant womanPhysiologic changes in pregnant woman
•• HematologyHematology1.1. Blood volumeBlood volume1)1) Increase by 30%Increase by 30%--45% at 3245% at 32ndnd ––3434thth
(peak)(peak)2)2) Relatively dilutedRelatively diluted2.2. CompositionComposition1)1) Red cellsRed cells
Hb:130Hb:130→→→→→→→→110g/L, HCT:38%110g/L, HCT:38%→→→→→→→→ 31%.31%.2)2) White cells: slightly increaseWhite cells: slightly increase3)3) Coagulating power of blood: Coagulating power of blood: ↑↑↑↑↑↑↑↑