Body

HEART

The heart is a muscular organ that pumps blood throughout the body via the circulatory system. It beats roughly 100,000 times a day, moving about 7,500 liters of blood. Its four chambers work in a coordinated rhythm set by a natural pacemaker of cells.

HEART is the kind of word that shows up in themed word searches like Strands. Themed puzzles group words like this under a shared category — here, Body.