…The rib cage is strong because of the ribs, and is well-suited to protecting the two important organs, the lungs and the heart. Furthermore, the rib cage, in cooperation with the diaphragm, expands and contracts the lungs, which cannot expand on their own, and allows air to enter and exit the lungs (this is called ventilation). The weight of the human lungs is about 200g each (for an adult), but the left lung is slightly smaller. *Some of the terminology that refers to "ventilation movement" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…胸郭は,肋骨のためにがんじょうにできており,肺と心臓という二つの重要臓器を守るために好都合になっている。さらに胸郭は横隔膜の働きと共同して,みずからはふくらむことのできない肺を伸縮させ,肺の中に空気を出し入れさせる(これを換気運動という)役割をもっている。 ヒトの肺の重さは左右ともおよそ200g(成人)程度であるが,左側の肺はやや小さい。… ※「換気運動」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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