A few decades ago I saw a video on how they made some "visible human" software where you could slice through various body parts and see a real image.
Turns out they literally froze bodies then used a large milling machine to shave layers off a millimeter at a time, taking pictures as they went.
I worked with CNC machines at the time and on regular old metal cutting machines the coolant tanks would stink like death. Just imagining a chip conveyor full of human hamburger made me throw up a little.
try being is a cold room with gloves and scalpel cutting though 8-10 inches of yellow runny human fat then using gloved hands to scoop said fat into plastic drums for cremation post autopsy. The odor and texture was something else. It took days to get the corpse down to bones and tissues sans skin and fat. I did gross out half the class; sending some to garbage cans to vomit with my remark (I had two gloved handfuls of fat at the time) "This looks like the stuff I make chicken broth out of".