bild

Illustration of the male human anatomy. The most solid parts are the inner organs with lungs, heart, liver, stomach, intestines and the urogenital organs shown. In the cardiovascular system is veins are and arteries are red. The nervous system (except the brain) is yellow. The skeletal system is transparent. Not shown here are the muscles and the lymphatic system. (KEYSTONE/SCIENCE PHOTO LIBRARY/SIMONE ALEXOWSKI / SCIENCE PHOTO LIBRARY)