I don't know offhand of programs that require a B in anatomy, but if you're interested in those you can email them...a B- may still be adequate. Not every school has +/- grades, so an 82 at one school may be a B and may be a B- someplace else. Schools with minimum requirements like that will often take that into consideration.
But a 3.75 is a competitive GPA. I think offhand you're fine. Keep up the hardwork the next two years and you should be good to go.