Question

i want the location and function of all the respiratory organs

Answer 1

well the first thing is that all respiratory organs r present in the thorasic cavity.
now the functions of the respiratory organs r as follows ;-)
0.nosetrills - they help in taking air from atmosphere.( this is obvious that they r not found in thoracic cavity).
1. nasal cavity - this helps in trapping out the dust particles from the atmosphere, as they contain mucus and cilia(hairs).
2. lungs 
they help in filteration of the air which we take in, this process works due to the small units called alveoli .
3.diaphragm this is a thin sheet which is present after the lungs and the work of this is to increase area for taking in air.this sheet is not present in thoracic cavity but acts as a seperator of thoracic cavity and abdominal cavity.