What subjects do you need to know to become a cardiologist?

To become a cardiologist you need to take classes that deal with math, Biology, organic chemistry, inorganic chemistry, english, etc.

you have to have a good idea of the body through the dissection of cadavers (obviously)

and then you need to get your doctoral degree and take up a residency for about 3-6 years Biology, Chemistry or both major in college