Visualize what the inguinal canal will look like before performing surgery on the cadaver. It will be about one and a half inches long, in the shape of a six-sided cylinder. View graphics of it in medical texts.
Approach the anterior abdominal wall on the cadaver. This is the front of the body.
Make an incision above the medial half of inguinal ligament. Have a medical professional, such as a professor, help you locate the proper incision point and supervise the procedure.
Locate the scrotum and gain access to it, removing it from the body if necessary. Dissect the scrotum in half, lengthwise.
Remove the superficial layers to the cremaster. The inguinal canal will be visible running through the tunica vaginalis, as well as other parts of the scrotum.