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EMBRYOLOGICAL DERIVATIVES IN THE GENITAL SYSTEM

The genital system develops from the mesonephric ducts (which form male reproductive organs) and the paramesonephric ducts (which form female structures like the uterus). Gonadal ridges differentiate into testes or ovaries based on genetic signals. For more details, check out our article on Embryological Derivatives in the Genital System by Nextillo DIBS.

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EMBRYOLOGICAL DERIVATIVES IN THE GENITAL SYSTEM

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  1. NEXTILLO_ #DIBS BY NEXTILLO EMBRYOLOGICAL DERIVATIVES IN THE GENITAL SYSTEM DAILY INFORMATION BULLETIN SERVICE NEXTILLO.COM

  2. #DIBSBYNEXTILLO DAILY INFORMATION BULLETIN SERVICE EMBRYOLOGICAL DERIVATIVES IN THE GENITAL SYSTEM The embryological formation of the intermediate mesoderm derived urogenital system begins as two separate, yet interwoven processes: Development of the urinary system from the nephrogenic cord. Development of the reproductive system from the gonadal ridge The interplay between multiple genes and hormones is essential for both systems to develop properly. NEXTILLO.COM

  3. VISUAL REPRESENTATION NEXTILLO.COM

  4. EMBRYOLOGICAL DERIVATIVES IN THE GENITAL SYSTEM THE NEPHROGENIC CORD urinary system begins forming during the 4th week of gestation. At the end of week 4, a nephrogenic cord has formed, giving rise to three kidney systems: ➢ The pronephros in the cervical region, nonfunctional and regresses by the end of the fourth week of gestation ➢ Mesonephros in the thoracic and lumbar region, exists as the embryonic kidney in the lumbar region from weeks 4 to 8, and its remnants go on to form several structures in the male genital system. ➢ The metanephros, which will ultimately transform into functional kidneys. NEXTILLO.COM

  5. EMBRYOLOGICAL DERIVATIVES IN THE GENITAL SYSTEM gonadal ridge The initial appearance of the gonads is the genital (gonadal) ridges formed by the proliferation of the epithelium and condensation of underlying mesenchyme. The development of testes in males and ovaries in females relies on the induction by primordial germ cells from the yolk sac to the genital (gonadal) ridges during the 4th through 6th weeks. In females, the absence of anti-Mullerian hormone (AMH). NEXTILLO.COM

  6. EMBRYOLOGICAL DERIVATIVES IN THE GENITAL SYSTEM GENETIC DEFECTS Gonadal dysgenesis, the presence of streak gonads instead of functional gonads, with Turner syndrome. Undescended testis- path of descent from the abdomen or ectopically. cryptorchidism are crucial as it is associated with infertility. Wilms tumor is first diagnosed, lung metastasesare present in 10 to 20% of cases. NEXTILLO.COM

  7. MCQ Question: Surgery for correction of undescended testies(Cryptorchidism) is best done before? A 1 month of age B 6 month of age C 1 year of age D 2 year of age Answer: (C) 1 year of age NEXTILLO.COM

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