Primary urethral groove
Structure on the penis during embryonic development
| 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 [edit on Wikidata] | |
The primary urethral groove or urethral groove is a temporary linear indentation on the underside (ventral side) of the male penis during embryonic development.
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]
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.
- v
- t
- e
- Mesoderm
- intermediate
- lateral plate
- Endoderm
- cloaca
- Ectoderm
- Cloacal membrane
- Nephrogenic cord
- Nephrotome
- Pronephros
- Mesonephros
- Mesonephric duct
- Urogenital sinus
- Primary urethral groove
- Urachus
