Question

Evolution of urinogenital ducts long question?​

Answer 1

Answer:

urogenital system, also called genitourinary system, in vertebrates, the organs concerned with reproduction and urinary excretion. Although their functions are unrelated, the structures involved in excretion and reproduction are morphologically associated and often use common ducts. The major structures of the urinary system in mammals are the kidneys, ureters, bladder, and urethra. The major structures of the reproductive system in males are the testes, sperm ducts, urethra, and penis; in females, they are the ovaries, fallopian tubes, uterus, and vagina. See excretion; reproduction.

Explanation:

In the absence of SRY, the gonad develops into an ovary with oogonia and stromal cells.

In the absence of SRY, the gonad develops into an ovary with oogonia and stromal cells.Since no testosterone is produced, the mesonephric ducts regress.

In the absence of SRY, the gonad develops into an ovary with oogonia and stromal cells.Since no testosterone is produced, the mesonephric ducts regress.Since there is also no MIS, the paramesonephric ducts persist to give rise to the oviducts, uterus, and upper 1/3 of the vagina

In the absence of SRY, the gonad develops into an ovary with oogonia and stromal cells.Since no testosterone is produced, the mesonephric ducts regress.Since there is also no MIS, the paramesonephric ducts persist to give rise to the oviducts, uterus, and upper 1/3 of the vaginaThe urogenital sinus contributes to the formation of the bulbourethral glands and the lower 2/3 of the vagina

In the absence of SRY, the gonad develops into an ovary with oogonia and stromal cells.Since no testosterone is produced, the mesonephric ducts regress.Since there is also no MIS, the paramesonephric ducts persist to give rise to the oviducts, uterus, and upper 1/3 of the vaginaThe urogenital sinus contributes to the formation of the bulbourethral glands and the lower 2/3 of the vaginaThe development of the female gonad and upper reproductive tract is shown below - the red tube is the paramesonephric duct which becomes the oviduct and the purple tube is the mesonephric duct, which mostly regresses: