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A urogenital sinus anomaly is also a rare birth defect in women where the urethra and vagina both open into a common channel. [ 3 ] [ 4 ] A persistent cloaca is a disorder where the rectum , vagina , and urinary tract meet and fuse, creating a cloaca , a single common channel.
m, m. Right and left Müllerian ducts uniting together and running with the Wolffian ducts in gc, the genital cord. ot. The genital ridge from which either the ovary or testis is formed. ug. Sinus urogenitalis. W. Left Wolffian body. w, w. Right and left Wolffian ducts. B.—Diagram of the female type of sexual organs.
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.
m, m. Right and left Müllerian ducts uniting together and running with the Wolffian ducts in gc, the genital cord: m. Müllerian duct, the upper part of which remains as the hydatid of Morgagni; the lower part, represented by a dotted line descending to the prostatic utricle, constitutes the occasionally existing cornu and tube of the uterus ...
The prostate forms from the urogenital sinus and the efferent ducts form from the mesonephric tubules. For this, it is critical that the ducts are exposed to testosterone during embryogenesis. Testosterone binds to and activates androgen receptor, affecting intracellular signals and modifying the expression of numerous genes. [3]
The part of the urogenital sinus related to the bladder and urethra absorbs the ends of the Wolffian ducts and the associated ends of the renal diverticula. This gives rise to the trigone of the bladder and part of the prostatic urethra. The remainder of this part of the urogenital sinus forms the body of the bladder and part of the prostatic ...
A.—Diagram of the primitive urogenital organs in the embryo previous to sexual distinction. * 3. Ureter. * 4. Urinary bladder. * 5. Urachus. * cl. Cloaca. * cp. Elevation which becomes clitoris or penis. * i. Lower part of the intestine. * ls. Fold of integument from which the labia majora or scrotum are formed. * m, m.
The ducts pass backward lateral to the mesonephric ducts, but toward the posterior end of the embryo they cross to the medial side of these ducts, and thus come to lie side by side between and behind the latter—the four ducts forming what is termed the common genital cord [citation needed], to distinguish it from the genital cords of the ...