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The female reproductive system is composed of two embryological segments: the urogenital sinus and the paramesonephric ducts. The two are conjoined at the sinus tubercle. [2] [3] Paramesonephric ducts are present on the embryo of both sexes. [3] [4] Only in females do they develop into reproductive organs.
The human female reproductive system consists of the gonads, external genitalia and the Müllerian duct system. [28] Initially in the embryo, both the Wolffian (mesonephric) and Müllerian (paramesonephric) ducts are present, where development of the Wolffian ducts give rise to the male reproductive tract and development of the Müllerian ducts ...
In the female, the paramesonephric ducts persist and undergo further development. The portions which lie in the genital cord [citation needed] fuse to form the uterus and vagina. This fusion of the paramesonephric ducts begins in the third month, and the septum formed by their fused medial walls disappears from below upward.
Female Male Gonad: Ovary: Testicle: Rete ovarii: Rete testis: Paramesonephric ducts (Müllerian ducts) Fallopian tube: Appendix testis: Uterus, cervix, vagina [1] Prostatic utricle: Mesonephric ducts (Wolffian ducts) Epoophoron: Epididymis: Gartner's duct: Vas deferens: Seminal vesicle: Mesonephric tubules: Paroophoron: Paradidymis: Urogenital ...
The internal genitalia consist of two accessory ducts: mesonephric ducts (male) and paramesonephric ducts (female). The mesonephric system is the precursor to the male genitalia and the paramesonephric to the female reproductive system. [8] As development proceeds, one of the pairs of ducts develops while the other regresses.
The uterovaginal primoridium, which is a fusion of the caudal ends of paramesonephric ducts, contacts the dorsal wall of the urogenital sinus and, induces the formation of the sinus tubercle. This occurs in both sexes: In the female, the mesonephric duct loses all association with the gonad and
As a component of the female reproductive system, the cervix is derived from the two paramesonephric ducts (also called Müllerian ducts), which develop around the sixth week of embryogenesis. During development, the outer parts of the two ducts fuse, forming a single urogenital canal that will become the vagina, cervix and uterus. [14]
One duct then regresses, with this depending on whether the embryo is genetically female or male. In females, the paramesonephric duct remains, and eventually forms the female reproductive tract. [17] The portions of the paramesonephric duct, which are more cranial—that is, further from the tail-end, end up forming the fallopian tubes. [17]