And as far as anatomy goes (not physiology, just the anatomy parts) 90% of it follows the same naming conventions: It will be the distal/proximal/inferior/superior bunch-o-Latin-roots. Again, lots and lots of volume, but just knowing naming conventions and a few Latin roots you can derive the right answer (there are some things named after the guy that found it, or Germanic roots instead of Latin, or it was named after a horse... but most is patterns).
This same principle applies to everything in the basic sciences of medical school - knowing what the enzyme types are let’s you figure out what the thing does based on its name without having to actually learn what it does. Learning what triggers insulin to be released and what different tissues do can allow you to infer what the effects of insulin are in different tissues...and so on.
Everyone on here exclaims how difficult Medical school is...but you realize that if 95% of people who get in to medical school go on to become attending physicians, it really can’t be that hard. I am by no means suggesting medical school is easy, however it is not MED school itself that is difficult - it is what you challenge yourself to do in it that makes it difficult. It is not that the information is hard or that you can only do well by always studying...it is that there is always something that you can be studying. You don’t have to study everything, you just can. And if you plan your school list well, ensuring that you only apply to unranked P/F for preclinical, you will find yourself in a position where if you just don’t want to study anymore then you can stop and go for a hike without any added stress of thinking you will fall behind.