: 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.
But the blue light's inability to penetrate as deeply as red light makes the veins appear blue. 1 Note the our in that statement. Humans and all other animals with backbones have red blood, but some animals, such as lobsters, crabs, crawfish, octopodes, squid, mussels and clams, do have blue blood.