He, like the other two, sought an internship in Teacher Tan's group because of his admiration for Teacher Tan's laparoscopic skills. However, without Teacher Tan's guidance, he really couldn't understand.
It wasn't that he couldn't understand the images at all. After all, as a medical student, he had studied anatomy and could tell that there were intestines in the abdominal cavity, with mesentery outside the intestines. As for the rest, where the laparoscope was positioned along the intestines, what part of the mesentery it was, if the Chief Surgeon didn't say, the students could only guess blindly.
This was the technical crux of laparoscopic surgery.
Open surgery meant laying the patient's belly open, with a broad view, and everything inside the patient's abdomen could be clearly discerned by the surgeon with the help of comprehensive human anatomical charts from the classroom.