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Human digestive system. Resin cast view of the blood vessels of the liver (light blue), gallbladder (yellow), and small intestine or gut (bottom). Arteries are colored red and veins blue.
Ralph Hutchings/Visuals Unlimited, Inc.
all images © Visuals Unlimited
Visuals Unlimited, Inc. specializes in, microscopy, healthcare, medical, wildlife, underwater, agriculture, and science stock photography.