xīn

Heart, a picture in the seal writing. 61st radical. It shows the pericardium opened, the lobes and the aorta below. (W. 107 A.) In combination at the left it is written 忄,

忄 (when used as a left Chinese radical)
㣺 (sometimes when used as a bottom Chinese radical, like 慕)

Compounds

Learn more about 心 at Wikionary