Final answer:
The heart is a hollow, muscular organ that circulates blood.
Step-by-step explanation:
True
The heart is indeed a hollow, muscular organ that plays a vital role in the circulation of blood throughout the body.
It consists of four chambers, namely the left and right atriums and ventricles, which contract and relax rhythmically to pump oxygenated blood to the body and deoxygenated blood to the lungs for oxygenation.
Learn more about The heart and its function