They are all incredibly low yield subjects. Unless you have tons and tons of time I would just try to know the anatomy and embryo that's in FA. Don't even bother with histo.
Well I had stars on those subjects, and all I used was High Yield Embryology, and the FA section for embryology. As for the Anatomy I stuck with what was in the FA, I read High Yield Gross Anatomy once but that was almost 3 months before the test. I did not read anything for Histo outside the FA.