"From the 1950s onwards, scholars have been raising the need to divide the liver into segments based on the structures and characteristics of its vessels for the purpose of hepatectomy. The Couinaud classification should be the first one that was recognized internationally…
"Meanwhile, Rex studied the distribution of the hepatic portal vein in the liver via vascular corrosion casting.
"Cantlie studied the distribution of the hepatic portal vein and the hepatic arteries during an autopsy."
After Ling Ran showed the footage and the model of the liver to the students, he started talking about the segmental anatomy of the liver starting from its origins. He was not really talented in teaching, but it was fine since he possessed a nice voice and presented himself well.
A lot of lecturers fantasized about their students listening to them in a trance, and Ling Ran managed to achieve this during his first class.