It helps a lot. It would suck having to learn all this crap from scratch along with rest of the workload. It also seems very similar to undergrad biochem, just with more detail.
My opinion is most anatomy at UG level is not needed for medical school. Having a solid grasp of basic human physiology is a little more important but we are talking freshman bio level. You would be better off doing a medical terminology workbook as a help when you take the class in medical school rather than any deep dive in content
College is your last chance to really devote yourself to any non-medical subject!
I just had a retroactive heart attack! Its just $250 dollars, single dollars.$250,000?