: 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.
1 Blood also absorbs light, so blood vessels appear dark. 2  Arteries have muscular walls, rather than thin walls like veins, but they likely would appear the same color if they were visible through the skin. 3  Deoxygenated blood is dark red.