What happens to your chest when you take a breath

1.	What happens to your chest when you take a breath
Answer» ong>ANSWER: Explanation: our diaphragm BECOMES flat and oxygen rich blood enters the body and EXCHANGE of gases takes place ACROSS the alveolar surface

Answer»

Explanation: our diaphragm BECOMES flat and oxygen rich blood enters the body and EXCHANGE of gases takes place ACROSS the alveolar surface

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