Bio pathway, they are in English, or in abbreviation

They are.

They are the chemical structure, that is why the General chemistry was overall everyone has to take it. 

I didn't take the Physiology

Your Body are a enclosure structure. If you cut a wound, that air exposure, you gonna have an infection. To that internal structure, you have a skeleton (Anatomy) and physiology, practically speaking every semi-liquid, paste, liquids parts of your body, without the GI track which its the only Hollow or airy, or what do you define.....its a....compartment, beside when you define all the sucket to where all the major organs are, those are defined as the compartments.

Meaning ....

So called the bio-pathway, in the most righteous situation, a maintain body temperature including Ph Level, you are not supposed to get the cancer situation.