: 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.
In the diagram above, the blood vessels of the circulatory system are colored according to whether they carry blood that is high in oxygen (red) or low in oxygen (blue). Most arteries, which carry blood away from the heart, are colored red; most veins, which carry blood back toward the heart, are colored blue.