Your basic body type

General shape of human body is defined by the bone structure and then with  muscle and fat .

There are few definitions of body types,one of the most basic ones devides body types on 

Ectomorph body type wich is characterized by :

- narrow hips and calvices

- small joints

- thin build

- stringy muscle bellies 

- long limbs

Mesomorph body type wich is characterized by:

- wide calvices 

- narrow waist

- thinner joints

- long and round mucle bellies

Endomorph body type wich is characterized by:

- being blocky 

- thick rib cage

- wider thicker joints

- hips as wide as calvice

- shorter limbs 

If you dont know wich type you are and descriptions from abowe are confusing there are certain tests that you can do online wich will hellp you determain.