Answers

2015-06-09T19:56:33+08:00
The pathway of oxygen breathing :
The air will enter through the Nose -> and will pass Nasal passages for the filtering,moistening,and warming of the air -> down to Trachea -> that will go to theBronchi  -> which will go to the Bronchioles for the distribution of air to each -> Alveoli and the exchange of air will happen here
0