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The urethra forms itself from the lower part of the urogenital sinus (UGS).
- In a man the prostate and membranous part of the urethra arise from the pelvic part of the UGS while the spongy urethra comes from the phallic part (urethral plate).
- In a woman the whole urethra and part of the vagina arise from the pelvic part of the UGS while the phallic part (urethral plate) forms the vestibule and the labia minora.
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More info
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In the genital tract module you will learn more about the development and differentiation of the urogenital sinus in males and females.
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