Fill in the Blanks The respiratory system Online version En esta actividad los estudiantes van a repasar las generalidades del sistema respiratorio by andrea salamanca 1 nutrients dioxide dioxide oxygen airways waste thorax carbon cells pulmonary respiratory exchange gas breathing energy involuntary blood cell lungs exchang oxygen carbon The system is and automatic . Since our birth , you have been all the time thinking about it . Through respiration our body takes in from the air . Oxygen is transported in the to all the cells . In the , it is used to generate from . Finally , the is eliminated as . Respiration is the process of gas between and . The respiratory system consists of the and the . The lungs are organs located on each side of the and are responsible for
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