Labelled diagram of external genitals in the early foetal stage. 1. Glans (a nub at the top) 2. Epithelial tag (tissue linking glans) 3. Urethral fold (a lip around the middle 4. Urethral groove (a gap) 5. Lateral buttress (a mound on either side) 6. Labio-scrotal swelling (the bottom of the mound) 7. Anal tubercule (line at the bottom 8. Anal pit (roughly where anus is) 9. Coccyx, tail (part underneath) 10. Coronal sulcus (future origin of prepuce)
https://s3.masto.ai/media_attachments/files/110/610/680/223/070/250/original/6509e6975285f6d2.png