Layers (superficial to deep)
| Abdomen | Scrotum | Penis |
| Scarpa's fascia | Darto's fascia | Darto's fascia (Colle's fascia in perineum) |
| External oblique (aponeurosis) | External spermatic fascia | Buck's fascia |
| Internal oblique | Cremasteric muscle | |
| Transversalis | Internal spermatic fascia | |
| Peritoneum | Tunica vaginalis | |
| Tunica albuginea | Tunica albuginea |
Intercostal nerves are located on the inferior border of the rib, between the internal oblique and transversalis
Inferior border of pleural cavity between 10th-12th ribs
External iliac -> inferior epigastric artery -> supplies rectus muscle <- superior epigastric artery (runs anterior to the posterior rectus sheath) <- internal thoracic artery
Lymph nodes
| Superficial inguinal | Deep inguinal | External iliac | Internal iliac | |
| Distal urethra Labia |
1 | 2 | ||
| Proximal urethra | 1 | 2 | ||
