The blue color of superficial blood vessels results from
A)a lack of oxygen in the blood.
B)the light-scattering properties of collagen.
C)the superficial location of skin pigments.
D)an increase in arterial blood circulating in the area.
E)a lack of melanin in the area.

Question

Quizplus · Accepted Answer

The blue color of superficial blood vessels is due to the light-scattering properties of collagen. The collagen fibers in the skin scatter blue light more than other colors, resulting in the blue coloration of the vessels. This is why blood vessels appear blue or greenish through the skin.

The Blue Color of Superficial Blood Vessels Results from