EPISODE · Apr 15, 2026 · 17 MIN
扣人心弦 - 心弦的物理真相
from 『身體不思議』Amazing Facts of Human Body · host 解剖知識+
心臟這顆超狂幫浦為了讓血液乖乖「單向通車」而不逆流，內建了名為「瓣膜」的單向門。有趣的是，為了怕大門被高壓血流沖翻，心室還特別配備了強韌的「腱索」死死拉住門片，這個超硬核的防護機制，正是成語「扣人心弦」的真實物理版！至於你常聽到的「噗咚（Lubb-Dupp）」心跳聲，其實根本不是心臟在唱歌，而是它在收縮與舒張時，用力甩上這些單向門所發出的「關門聲」啦！ 留言告訴我你對這一集的想法： Powered by Firstory Hosting
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扣人心弦 - 心弦的物理真相
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This episode was published on April 15, 2026.
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