College and medical school?

It's never too early to start thinking about college. I just finished my freshman year of high school. I have been thinking to pursue a career as an anesthesiologist. I know I may change my mind, but for now i'm a bit confused. I was thinking to go to ou (university of oklahoma), but there's also ouhsc(university of oklahoma health sciences center. Is ouhsc a medical school? Or is it a college that focuses specifically in medicine?