>>1545468I was making a joke lol
Anyway I think picrel is what OP is looking for?
Found a research paper where some scientists chemically treated bones to make them clear so they could see the blood vessels inside them. Picrel is from there, and the link provided is open-access in case you want to see the other images, and videos too apparently. So you actually do get pictures!
https://pmc.ncbi.nlm.nih.gov/articles/PMC6795552/ 