Why don't we just talk about the entire body all at once?

Hello! I believe that

it would be impossible to not talk about the body in different

systems. Each system of the body is composed of different organs.

Organs contain tissues, and tissues are made up of cells. Each and

every system is dependent upon the other, they all work together.

You cannot just talk about the entire body all at once simply

because there is so much to talk about. The human body is one of

the most amazing things in this world. Besides, it is easier to

talk about certain systems and their functions rather than rambling

on about random parts.