Health Dictionary
Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.
Cloacal membrane
Introduction
The cloacal membrane is the membrane that covers the embryonic cloaca when still in the development of the urinary and reproductive organs.
It is formed by ectoderm and endoderm coming into contact with each other. After separation of the cloaca into the urogenital and anal parts, the cloacal membrane, in turn, is separeted into a urogenital membrane and an anal membrane.