PATHOLOGY

PATHOLOGY MCQ

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What do veins look like through our skin?
A
A:They are slightly pink.
B
B:They are big and bulgy.
C
C:They are blue.
D
D:They are gray.
Explanation: 

Detailed explanation-1: -The veins themselves are not blue, but are mostly colorless. It is the blood in the veins that gives them color. Furthermore, the blood in human veins is also not blue. Blood is always red.

Detailed explanation-2: -Sometimes blood can look blue through our skin. Maybe you’ve heard that blood is blue in our veins because when headed back to the lungs, it lacks oxygen. But this is wrong; human blood is never blue. The bluish color of veins is only an optical illusion.

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