This class seems pretty complicated and confusing during lecture, but all the homework problems and test problems are taken almost straight from the lecture, so its actually not that hard to get a decent grade. Professor Yoon is nice, although he is sometimes confusing to listen to in lecture. In addition, almost all the work in this class is done on the chalk board, so it's really important that you pay attention in class, because there are no online presentations and no textbook to work off of if you miss something. Other than that this class is fairly interesting if you like learning about that human body, and honestly doesn't require too much work.