Hi, I recently found a very good youtube channel where the guy explains wonderfully all the concepts. I felt like I should have watched them way before instead of wasting a lot of time on kaplan videos. The youtube channel is “Ninja Nerd Science”. Their videos are really good, especially Cardiovascular system, Neurology, Immunology and others. You may not find videos of all the subjects but the ones that are there could help you. So, check this channel out for good concepts. Best of luck!!
Source: Quora Digest