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sciences | Exercices scolaires

Exercices scolaires

Personnaliser le travail de chaque enfant pour sa réussite scolaire.

sciences

Que se passe-t-il quand je respire ?

Auteur gwen

Dessine ce que tu as compris :

Respirer, c’est inspirer et expirer .

En inspirant, tu apportes à ton corps l’oxygène dont il a besoin . L’air entre par ton nez ou ta bouche, descend dans la trachée, puis dans tes bronches jusqu’à tes poumons .

Une partie de l’air que tu as inspiré passe alors dans ton sang .

En expirant, tu rejettes de ton corps un gaz qui l’encombrait .

Publié dans Le vivant |

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