: 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.
Clearly it does, since arterial blood is normally bright red, and venous blood is normally deep maroon. This fact is irrelevant in regards to the âblue veinsâ we see in skin. However, skin is also full of much smaller and more superficial microvessels.