: 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.
So, if veins aren't blue, you may be wondering about their true color. If you have ever eaten meat, you already know the answer to this question! Blood vessels appear reddish-brown in color. There isn't much difference in color between arteries and veins. They do present different cross-sections.