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Muscles Contract Inspiration External Intercostal Increase Thoracic Cavity

The muscles that contract during inspiration are the external intercostal muscles, which increase the thoracic cavity, and the phrenic muscles, which flatten the diaphragm.

Los músculos que se contraen durante la inspiración son los músculos intercostales externos (aumentan la cavidad torácica) y los músculos frénicos (aplanan el diafragma).

Front the muscles which contract during inspiration are
Back •External intercostal muscles - increase in thoracic cavity
•Phrenic Muscles- flattens diaphragm

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