this post was submitted on 14 Jun 2023
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[–] [email protected] 14 points 1 year ago (1 children)

That veins contain blue blood. I learned it from the textbook and believed it for a year, until I heard my parents insist it was red. I thought there is no way that could be true, the textbook clearly said otherwise! So I went back to check the book thoroughly and wouldn't you know it - on page 32 there was a tiny footnote on the bottom saying that all blood is red but the pictures will show it as blue for clarity - followed by a hundred pages of glorious full-color illustrations of red-and-blue circulatory systems. Thanks a lot, textbook!

[–] [email protected] 3 points 1 year ago

In the textbook’s defense, the abstraction is more useful and educational than a color-accurate representation.