: 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.
Blood that is filled with oxygen is red, but the farther blood goes through the circulatory track (in the arteries), the more it gives away its oxygen to organs and organ systems, concluding with the blood having a blue color, and in that case it has to go to the vein and go to the lungs to refill on oxygen. 1.