EPISODE · Jul 20, 2026 · 24 MIN
2026 biology talkshow:你的身體在騙你？破解「青筋」的光學迷思
from 雷比特生物空中講 · host 雷比特老師
詳盡地剖析人體「青筋」背後的科學奧秘，揭示其顏色並非源於藍色血液，而是由光學散射與大腦的視覺對比機制共同織就的錯覺。從生物物理學的角度解釋，去氧血紅素吸收長波長的紅光，導致皮膚反射出的光線在感官上呈現青藍色。進一步探討解剖生理學，說明體脂率與肌肉收縮如何讓淺靜脈顯露，並區分正常的生理現象與靜脈曲張等病理警訊。此外，內容也涵蓋演化生物學的視角，解釋動脈深藏體內以求保護的機制，最後介紹現代醫學對血管病變的微創治療方案。聽完後可以自主進行線上測驗，檢視學習成效喔~(需要登入gemini)測驗網址 https://share.gemini.google/BhhuR1QEaJdB Powered by Firstory Hosting
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2026 biology talkshow:你的身體在騙你？破解「青筋」的光學迷思
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