Krylov. That's the name to remember. One of outstanding professors of the Academy. Very talented and increadibly modest man.
He is in charge of that Department of Religious and Historical Painting.
You need to study at the Academy for 2 years, and to be a really good student to be accepted there. First, they check your works during evaluations, then you have a confidential interview with Prof. Krylov.
Of course, you can mention already at your 1st year of study that to get to his workshop is your goal. And to visit his workshop on each and every occasion. In other words, to show interest.
Prof. Krylov's workshop is kind of "mafia" (in good sense), all his students adore him and they all exist somewhat by their own within Academy walls.
There was one guy from South Africa, he wanted to study there at the very beginning. He became so serious about this that he even got baptised here. Of course, no one wants you to become a Russian Orthodox, but you definitely need to have religious soul. Otherwise you'll never comprehend what you're doing there.
And in regards of anatomy - all Academy students (excluding architects) have the same amount of hours spent on anatomy studying.
Check this link at Practicum.org - Department of Religious and Historical Painting (Krylov workshop).
And this one - from exhibition of student anatomy works, Manasherov workshop (check the level! and it's only 1st and 2nd year of study!).