| Cloacal membrane | |
|---|---|
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| Tail end of human embryo from fifteen to eighteen days old. | |
| Gray's | subject #6 47 |
| Carnegie stage | 7 |
| Days | 15 |
| Precursor | caudal end of the primitive streak |
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 separated into a urogenital membrane and an anal membrane.
External links
- Swiss embryology (from UL, UB, and UF) hdisqueembry/triderm04
- genital-021 — Embryology at UNC
- Diagram at unsw.edu.au
- Overview at ana.ed.ac.uk
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This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated.
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