Primary urethral groove
Structure on the penis during embryonic development
From Wikipedia, the free encyclopedia
The primary urethral groove or urethral groove is a temporary linear indentation on the underside (ventral side) of the male penis during embryonic development.
Latinsulcus urethralis primarius
| Primary urethral groove | |
|---|---|
| Details | |
| Precursor | Urogenital folds |
| Gives rise to | Urethra |
| Identifiers | |
| Latin | sulcus urethralis primarius |
| TE | urethral groove_by_E5.6.4.2.1.7.3 E5.6.4.2.1.7.3 |
| Anatomical terminology | |
In humans, it typically appears around eight weeks of gestation and becomes closed into a normal male urethra by the twelfth week.
Clinical significance
Failure of complete closure can be associated with hypospadias.[1]