[Location] Localized in the supine position, on the anterior median line of the upper abdomen, 6 cun above the umbilicus. (Fig.75)
 
[Regional Anatomy] Skin→subcutaneous tissue→linea alba→transverse fascia→extraperitoneal fat tissue→ parietal peritoneum. Superficial layer, the distribution of the anterior cutaneous branches of the prior branches of the seventh thoracic nerve, the superficial epigastric vein; deep layer, the branch of the prior branches of the seventh thoracic nerve.