Inspiration involves the contraction of external intercostal and diaphragm muscles, lifting and extending the rib cage and flattening the diaphragm downwards, increasing thoracic volume and decreasing pressure, causing air to move into the lungs.
L'inspirazione comporta la contrazione dei muscoli intercostali esterni e del diaframma, l'innalzamento ed estensione della gabbia toracica e l'appiattimento verso il basso del diaframma, che aumenta il volume toracico e diminuisce la pressione, causando l'ingresso di aria nei polmoni.
| Front | Describe inspiration. |
|---|---|
| Back | - external intercostal muscles contract - internal intercostal muscles relax - ribcage pulled upwards and outwards - diaphragm muscle contracts - diaphragm flattens downwards - thorax volume increases - thorax pressure decreases - air moves from atmosphere into lungs down pressure gradient |
Tags: gas_exchange
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