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| 1. |
Difference between inspiration and expiration. |
| Answer» \tAttributesInhalationExhalationWhat it meansIntake of air into the lungsExpelling air out of the lungsTypeActive processPassive processSize of the chest in the processIncreases, expandsDecreases, reducesDiaphragm – roleContracts, gets flattened by moving downRelaxes, moves up forming a dome-shapeIntercostal muscle – roleRelaxation of internal intercostal muscles and contraction of external intercostal musclesContraction of the internal intercostal muscles and relaxation of external intercostal musclesLungs – volumeRises to cause inflationReduces causing deflationAction it causesSupply of oxygen-rich air to the bloodCarbon dioxide is expelled outAir compositionInhaled air is a mix of oxygen and nitrogenExhaled air is a mix of nitrogen and carbon dioxide\t | |