Heart Anatomy QuizThis heart anatomy quiz is designed to test your knowledge of human heart anatomy. The heart is an extraordinary organ that supplies blood and oxygen to all parts of the body. A component of the cardiovascular system, the heart is about the size of a clenched fist, weighs about 10.5 ounces, and is shaped like a cone.
The heart is divided by a partition or septum into two halves. The halves are in turn divided into chambers. The upper two chambers of the heart are called atria and the lower two chambers are called ventricles. Valves allow blood to flow in one direction between the chambers of the heart.