HISTOLOGY
BLOOD VESSELS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Blood is blue
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The skin over the vessels make them appear blue
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Either A or B
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None of the above
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Detailed explanation-1: -The blood in your veins appears blue because you’re looking at them through layers of skin and fat, which absorb blue light.
Detailed explanation-2: -Superficial veins are the type that you can see. They may look green instead of red because the color green has a shorter wavelength than the color red. They may also look blue or blueish-green because blue also has a shorter wavelength than red.
Detailed explanation-3: -The arteries (red) carry oxygen and nutrients away from your heart, to your body’s tissues. The veins (blue) take oxygen-poor blood back to the heart. Arteries begin with the aorta, the large artery leaving the heart. They carry oxygen-rich blood away from the heart to all of the body’s tissues.