Back when I studied histology, the internet, as far as I knew, consisted of Medline and Biosomething. The librarians could get a list of citations from them and if the local library didn't have the journal, get a copy by mail from a nearby medical school.
We relied on our textbooks for the basic stuff. Things have changed.
Artery, vein, nerve, elastin stain
Above is my currently favorite illustration.
Or maybe this one is.
Then, there is this one.
Which one makes you feel all pink and healthy?
May you be in the pink.