: an exaggerated reaction to the male-oriented ''shoot-'em-up games''. noun. A movie or TV program with much gunplay and violence: gambled for cigarettes, slurped Tang or watched shoot-'emups on TV (1953+)
Circulatory system. The human circulatory system (simplified). Red indicates oxygenated blood carried in arteries, blue indicates deoxygenated blood carried in veins. Capillaries, which join the arteries and veins, and the lymphatic vessels are not shown.
I know that there are two types of blood and that venous blood is a very dark red, but NOT blue. Also that veins appear blue from that outside because of the color of skin. I would like some reputable information on the matter, and would like to show him proof that blood is not blue.