Development ofthe Urogenital System
Development of evelopment of the Urogenital System Urogenital System
LearningaimsDevelopment of metanephrosDerivatives of urogenital sinusThestepsthatoccurinthedifferentiation of the testes and ovariesCongenital malformations of urogenitalsystem
Learning aims • Development of metanephros • Derivatives of urogenital sinus • The steps that occur in the differentiation of the testes and ovaries • Congenital malformations of urogenital system
Primordia:Intermediate mesodermyolk sacJendodermstalkextra10embryonicmesoderm3
Primordia: Intermediate mesoderm
中肾峭Mesonephric ridge尿生殖嵋Urogenital生殖腺ridgeGonadal ridgeCervicalpart→nephromereCaudal part→nephrogeniccords生殖结节Genital tubercleUrogenitalridgegonadal ridge mesonephricridge(inner)(outer)
Cervical part → nephromere Caudal part → nephrogenic cords Urogenital ridge gonadal ridge (inner) mesonephric ridge (outer)
?横断面Transection中肾管Mesonephricduct
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