embryonic development
2024-08-29 11:53:52 0 Report
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Outline/Content
The beginning of embryonic formation
The formation of a zygote
The combination of sperm and egg
Physiological conditions of the fertilization process
Biological significance of fertilization
Changes in the cell after fertilization
The beginning of cell division
The reorganization of the cytoplasm
The formation of implantation and trophoblast
Preparation of the endometrium
hormonal regulation
The thickening and vascularization of the endometrium
The implantation process
Transparent zone reaction
The invasion of trophoblast cells
The phased division of embryonic development
Early embryonic development (from the first to the tenth week of pregnancy)
Cleavage stage
The formation and arrangement of blastomeres
The increase in the number of blastomeres
blastocyst stage
The formation of the blastocyst cavity
The differentiation of the inner cell mass and the trophoblast
Mid-gestation embryo development (from week 13 to week 27 of pregnancy)
blastocyst formation
The division into three germ layers
The appearance of the blastopore and the archenteron cavity
The formation of organ primordia
The development of the neural tube and the nervous system
The development of the heart and circulatory system
Late embryonic development (28th week of pregnancy and beyond)
The establishment of fetal morphology
The development of the limbs and torso
The formation of the face and the differentiation of the five senses.
The maturation of fetal organs
The development of the respiratory system and lung maturation
The improvement and functional establishment of the digestive system
Factors affecting embryo development
genetic factors
Genetic mutation and chromosomal abnormalities
The formation of genetic diseases
Genetic counseling and prenatal diagnosis
environmental factors
maternal health status
The impact of nutritional status
interference from maternal diseases
Physical and chemical factors
The risk of radiation exposure
Toxicity of drugs and chemicals
regulatory mechanisms during development process
Regulation of gene expression
The role of transcription factors
Epigenetic regulation
Cell signaling and communication
The interaction between growth factors and receptors
The establishment and maintenance of intercellular connections
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