hello,
last year i completed the anatomy/neurobiology post-bac program at vcu/mcv, and this year i went on to get my masters degree. the anatomy program is the most established as well as one of the hardest programs out of the certificate options. if anything, it is the one that most closely matches the courses taken during your M1 year.. biochemistry, histology, physiology, and neuroanatomy. i'll be honest though, it was a very rough year. however, after all that learning and over an extended period of time (a semester vs. just a few weeks), everything should pay off. i say this because i had friends who were in the post-bac with me, made it into med school (especially here at mcv) and have had a much easier time, compared to those who had never had these courses before. so while it definitely can't be guaranteed that you'll get into med school if you do this program.. it will look better on your application, especially if you had low science grades in undergrad and need to do some sort of program that can show that you can redeem yourself. However, as stated, there are a number of different options, and if you feel that you're not ready or willing to go through the anatomy tract, you don't have to.. i'm sure people in all of the programs have been accepted at some point. In any of the other programs, you are able to take electives, and you can change your schedule as you like.
with that said, if you have any more questions about the anatomy program, feel free to PM me.