College Level Medical Courses

[defscarlett]

I'm looking to expand my knowledge in the medical field, as part of my dissertation, it overlaps a bit into medical research. I'm reading through research papers from clinicians and I'm not quite understanding it due to my lack of knowledge in medicine. Are there any college level courses available for free or cheap? For the record they don't actually have to be worth college credit, just college level.

It's a criminal justice dissertation, revolving around forensic science, just trying to understand the human body better to understand what these research papers are actually saying.

I've already taken Human Biology and Biology I on sophia.