What is the color of your blood on the inside? Why does it turn red when you bleed?

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asked Aug 20, 2022 29.6k views

2 Answers

Mike Zalansky · Answer 1 · 2022-08-20T22:48:47+0000

Blood pumped directly from the heart is oxygen rich and bright red. As the blood circulates the body and oxygen is removed by tissue, the blood grows darker. For that reason, blood returning to the heart and lungs often has a dark red appearance. but it’s never blue...

What is the color of your blood on the inside? Why does it turn red when you bleed?

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