The Müllerian eminence is an epithelial on the ventral part of the cloaca

Cloaca

In zoological anatomy, a cloaca is the posterior opening that serves as the only such opening for the intestinal, reproductive, and urinary tracts of certain animal species...

 between the orifices of the Wolffian ducts. It appears during the development of the urinary and reproductive organs

Development of the urinary and reproductive organs

The development of the urinary and reproductive organs as a part of the prenatal development, concerns the urinary system and sex organs. The latter is a part of the stages of sexual differentiation....

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Function

The Müllerian ducts end here. At a later stage the eminence opens in the middle, connecting the Müllerian ducts with the cloaca

Cloaca

In zoological anatomy, a cloaca is the posterior opening that serves as the only such opening for the intestinal, reproductive, and urinary tracts of certain animal species...

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In the adult human, the Müllerian eminence has no function, but is only a remnant in the form of the hymen

Hymen

The hymen is a membrane that surrounds or partially covers the external vaginal opening. It forms part of the vulva, or external genitalia. The size of the hymenal opening increases with age. Although an often practiced method, it is not possible to confirm with certainty that a girl or woman is a...

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