Urogenital folds
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| Urogenital folds | ||
|---|---|---|
| Section of the urogenital fold of a chick embryo of the fourth day. | ||
| Gray's | subject #252 1206 | |
| Precursor | Intermediate mesoderm | |
| Gives rise to | labia minora, spongy urethra, penis | |
| Dorlands/Elsevier | f_11/12371558 | |
The urogenital folds (or urogenital ridges, or urethral folds) are an embryological structure which give rise to a portion of the external genitalia.
- In the female, the urogenital folds become the labia minora.
- In the male, they form the spongy urethra and a portion of the shaft of the penis, not including the glans.
[edit] Pathology
In the male, failure of the urogenital folds to fuse during development leads to a condition known as hypospadias.
[edit] See also
[edit] External links
- "Development of Male External Genitalia", at mcgill.ca
- "Development of Female External Genitalia", at mcgill.ca
- Dictionary at eMedicine Urogenital+folds
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