Will dental schools look at a course I took in HS?

I'm kind of panicking right now because I read in another thread that dental schools count all the courses ever taken at a CC. In my sophomore year of high school I took a physics course at my CC simply because I wanted to improve my physics knowledge and what not. I took it with the mindset that I was just there to learn and in the end I got a C in that class. And now I find out that dental schools will actually count that C towards my GPA, which happened years ago. Can anyone clarify it... Will dental schools look at a course I took in HS?
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Source Type: forums