persistent cloaca

(redirected from sinus urogenitalis)

per·sis·tent clo·a·ca

a condition in which the urorectal fold has failed to divide the cloaca into rectal and urogenital portions.

per·sis·tent clo·a·ca

(pĕr-sis'tĕnt klō-ā'kă)
A condition in which the urorectal septum has failed to divide the cloaca of the embryo into rectal and urogenital portions.
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