Primary urethral groove
The primary urethral groove or urethral groove is a temporary linear indentation on the underside (ventral side) of the male penis during embryonic development.
| Primary urethral groove | |
|---|---|
| Details | |
| Precursor | urogenital folds |
| Gives rise to | urethra |
| Identifiers | |
| Latin | sulcus urethralis primarius |
| TE | E5.6.4.2.1.7.3 |
| Anatomical terminology | |
In humans, it typically appears around 8 weeks of gestation and becomes closed into a normal male urethra by the 12th week.
Clinical significance
Failure of complete closure can be associated with hypospadias.[1]
References
- Holland AJ, Smith GH (August 2000). "Effect of the depth and width of the urethral plate on tubularized incised plate urethroplasty". J. Urol. 164 (2): 489–91. doi:10.1016/S0022-5347(05)67408-3. PMID 10893631.
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