大连医科大学：《组织胚胎学》课程教学课件（英文讲稿）G1-embryology

Embryology

IntroductionEmbryology: To study the initiation, development ofembryo and the related mechanismsDescriptiveReproductiveExperimentalDollyEmbryologyMolecularComparativeChemicalTeratologyIVF

Reproductive Molecular Teratology Chemical Comparative Experimental Descriptive Embryology Dolly IVF Embryology: To study the initiation, development of embryo and the related mechanisms. Introduction

9W- birth0-1 W2-8 WEmbryonicFetalPreembryonic38 weeksParturitionFertilizationPeri-natal period:26 W-7 Days after delivery

Preembryonic Embryonic Fetal 2-8 W 9W- birth 0-1 W 38 weeks Fertilization Parturition * Peri-natal period: 26 W-7 Days after delivery

What are we gonna learn?·GeneralEmbryology..Germ cells and fertilization..Cleavage..Blastocyst formation..Implantation..Formation & differentiation of germ layers.. The fetal membrane and placenta·SpecialEmbryology..Cardiovascular system..Urogenital system..Digestive system and respiratory system

• General Embryology . Germ cells and fertilization . Cleavage . Blastocyst formation . Implantation . Formation & differentiation of germ layers . The fetal membrane and placenta • Special Embryology . Cardiovascular system . Urogenital system . Digestive system and respiratory system What are we gonna learn?

Several concepts (P392)Cell divisionDifferentiationApoptosisCell movementsInductionMorphogenesisCellularinteraction

Several concepts (P392)  Cell division  Differentiation  Apoptosis  Cell movements  Induction  Morphogenesis  Cellular interaction

Tips for LearningBetterUnderstanding!Four “"W":when? where? what? Why?XDynamic processes with multiple simultaneouschanges:3D models and animations will facilitatethe active learning greatly.Pleaserefer to the websites below:http:/www.med.upenn.edu/meded/public/berplhttp://simbryo.stanford.edu/previewindex.htmlhttp://www.indiana.edu/-anat550/genanim

※Dynamic processes with multiple simultaneous changes; 3D models and animations will facilitate the active learning greatly. Tips for Learning Better Understanding nderstanding! Four “W”:when? where? what? Why? http://www.med.upenn.edu/meded/public/berp/ http://simbryo.stanford.edu/previewindex.html http://www.indiana.edu/~anat550/genanim/ Please refer to the websites below:

Genernal Embryology

Genernal Embryology

1.Gametogenesis&FertilizationGametogenesisFormation & maturation of the gametes;OvumSpermatozoon(1n)(monoploid, 1n)

1. Gametogenesis & Fertilization  Gametogenesis Spermatozoon Ovum (monoploid, 1n) (1n) Formation & maturation of the gametes;

OogoniumSpermatogoniummitosisfetal periodmitosispubertyPrimaryspermatocyPrimary oocytepubertymeiosis 1meiosis 1SecondaryoocyteSecondaryspermatocytfertilizationmeiosis2meidsis 222+X)(22+Y)MatureovumPolarbodiesSpermatids(22+X)(22X)+

FertilizationThe process by which a sperm penetrates intoan ovum to form a zygote.Oviductampulla? Where:? When:12-24h-Initiation ofthenew life!!

The process by which a sperm penetrates into an ovum to form a zygote . -Initiation of the new life!!  Fertilization ? Where: ? When: Oviduct ampulla 12-24 h