Well, the classes are graded separately, but they're all integrated by organ system. That is, you'll have all your cardio anatomy, cardio phys, and cardio embryology together, for example. You'll have a test every 2-3 weeks, and they usually have between 130-160 multiple choice questions. Practicals are in the afternoons and are done in 4 hour-long rotations. The students (M4's) who had a year of traditional curriculum and a year of the integrated curriculum much prefer the current set up, and it has only gotten better since then.