context: The respiratory system, or respirator, provides the cells of the human body with the oxygen necessary for their activities, and removes them from carbon dioxide (the product of their oxidation process). The inhalation air passes through the trachea and bronchus (its narrower branches that branch from it before entering the lungs) into the lungs. Each lung includes many bronchioles, which branch into bronchioles that end with a large number of alveoli (or alveoli) lined with very thin membranes through which gas is exchanged between them and the capillaries that surround the alveoli. The intercostal muscles (between the ribs) and the diaphragm (under the lungs) act to run the lungs like a bellows (a smithing blower), draw air into them and then push them out at regular intervals.
question: Which body organ is responsible for transporting oxygen?
answers.text: respirator