If Blood Is Red, Why Do Veins Appear Blue Through The Skin?
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Biology
Tag: Vein
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Why Can Sitting For A Long Time Cause Blood Clots, But Sleeping For Hours Doesn’t?
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Medicine
If Blood Is Red, Why Do Veins Look Blue?
August 21, 2017
Biology
Why Does Blood Pressure Have Two Values?
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Medicine
Why Is Blood Taken From Veins And Not Arteries?
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Medicine