I'm in the middle of A&P II right now and like the PP said, it requires many, many hours per week in addition to the regular class schedule for me to stay afloat. If you've worked in healthcare for a while or have some crazy knowledge of the human body and biology already, it may not be such a beast but being completely new to me, it definitely is very much like learning a new language (what a great way to explain that btw). Also, in my experience, it seems that the answers are in the details. In other words, you don't just need to know how this does that and what this organ is, you have to know all of the enzymes, hormones, valves, yadayada that make it do that so there is a lot of reading (and for me reading again and again and again to let it sink in). You Tube has helped alot with the visual aspect of learning what is where, you can pause, take notes, rewatch as many times as you need. Flash cards are also a big help, you can buy them but so far I have just made my own.