Anatomical Terms

First, to know more about this, you should know the definitions. Anatomy is the science that studies body structures and the relationships among them. Physiology is the science that studies body functions or how the body parts work. To be able to describe the body’s structure, it is necessary to use special terms that everyone understands to communicate clearly and precisely. 

These are the body positions: 

Anatomical, prone and supine are the main ones.

The body is divided also with somehting called regional names, here is a picture to show an example of them: 

To explain this easily, here's a youtube video that explains everything you need to know about anatomical terms and what are the use of them:

And last but not least we have the body planes, they are imaginary flat surfaces that are used to divide the body or organs to visualize interior structures. A sagittal plane is a vertical plane that divides the body or an organ into right and left sides. A midsagittal or median plane divides the body or organ into equal right and left sides, while a parasagittal plane divides them into unequal left and right sides. A frontal or coronal plane divides the body or organ into anterior and posterior parts.