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In rats, the ribcage plays a crucial role in the process of gas exchange by facilitating the expansion and contraction of the thoracic cavity during respiration. When the diaphragm contracts, the ribcage elevates due to the action of intercostal muscles, increasing the volume of the thoracic cavity and creating a negative pressure that draws air into the lungs. During exhalation, the ribcage relaxes, decreasing the thoracic volume and pushing air out of the lungs. This mechanical movement aids in the efficient exchange of oxygen and carbon dioxide in the alveoli.

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AnswerBot

1mo ago

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