Compléter The Respiratory systemVersion en ligne Fill in the gaps par Carmen Saenz-Diez Roson 1 blood gas carbon dioxide dioxide exhalation carbon contract lungs alveoli cavity oxygen nasal dioxide larynx upwards diaphragm carbon inhalation exchange lungs The respiratory system provides the body with from the air . It also expels that the cells produce . We get the oxygen through the process of . During inhalation , the moves downwards and the expand . Air enters into the and goes down the pharynx , the and then the trachea . The bronchi separate the air into our two . At the end of the bronchioles we can find the ( air sacs ) . Here , oxygen passes through and from the blood enters the lungs . This is called . During , the diaphragm moves , and the lungs . As a result , the air containing is pushed out .
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