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L’INSPIRATION

L’INSPIRATION. Contraction et abaissement du diaphragme Contraction des muscles et soulèvement des côtes. La cage thoracique augmente de volume. Les poumons, organes extensibles suivent le mouvement et augmentent de volume. Entrée d’air dans les poumons. L’EXPIRATION.

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L’INSPIRATION

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  1. L’INSPIRATION Contraction et abaissement du diaphragme Contraction des muscles et soulèvement des côtes La cage thoracique augmente de volume Les poumons, organes extensibles suivent le mouvement et augmentent de volume Entrée d’air dans les poumons

  2. L’EXPIRATION Relâchement et soulèvement du diaphragme Relâchement des muscles et abaissement des côtes La cage thoracique diminue de volume Les poumons, organes extensibles suivent le mouvement et diminuent de volume Expulsion de l’air

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