DK UK" src="https://i1.wp.com/res.cloudinary.com/dk-hub/t_pp-cover-desktop-2x,f_auto/DK/f6a4661926ae4fda8e8cc21f5cca3cc1/d7fce5900ddf487db7826adaaa4214de.jpg" width="100%" onerror="this.onerror=null;this.src='https://i1.wp.com/tse2.mm.bing.net/th?id=OIP.vDjmT9AVH3CbhQfoGv7tkgHaMa&pid=15.1';" /> DKfindout! Human Body Poster Source: buzz.iloveindia.com Mitchell, journal of biological chemistry 158, the brain and heart are composed of 73% water, and the lungs are about 83% water. Lying on the top of the body and enclosed in an incredibly hard protective cover of skull, the brain serves as the control center for all the functions of the body. It comprises a head, neck, trunk (which includes the thorax and abdomen), arms and hands, legs and feet. Lying on the top of the body and enclosed in an inc