Step 1 - Dissection of the Abdominal Wall, Penis and Scrotum

Preparation: You should skin the anterior abdomen to demonstrate Camper's fascia and Scarpa's fascia. Leave the skin around the umbilicus because of its importance as a landmark.

1. Carefully remove the superficial fascial layers to expose the rectus sheath and aponeurosis of the external abdominal oblique that forms the inguinal ligament as seen in this dissection. The superficial epigastric a. and v. are found in the superficial fascia.
   NOTE: The inguinal ligament is an important landmark in this region! It may be difficult to delineate if your cadaver is obese.

2. The bulk of the external abdominal oblique muscle is lateral and its fibers run in an inferior-medial direction.
   HINT: A good way to remember the direction of the fibers of the external oblique is to put your hands in your pockets. Your fingers point in the direction of the fibers.

3. Find the spermatic cord in males and the round ligament in females.