I agree with the posts above. If the course already gave out the specific book you need for the class, you could get it right now and go over it before the semester starts. I took Intro to Chem(Not sure what Chemistry class you're taking) and A&P I, along with two other classes, in the spring term. Chemistry wasn't as stressful as A&P I, in my opinion. Whenever I had A&P 1 and Chemistry test on the same day, I would study Chemistry first just to get it out of the way and then put all my studying time into A&P. Beforehand, you should get a general knowledge of the organs and their functions. As well as the muscles and their functions! I put them on flashcards which helped a bunch.