Final answer:
Valves besides those found between the atria and ventricles are located at the exits of the right and left ventricles leading to the pulmonary artery and aorta, respectively, and are called semilunar valves.
Step-by-step explanation:
Besides separating the atria from the ventricles, where valves are also located in the heart include the exits of the heart chambers that lead to major arteries. Specifically, these are known as the semilunar valves. The right ventricle has the pulmonary valve at its exit leading to the pulmonary artery, and the left ventricle has the aortic valve leading to the aorta. Both the pulmonary valve and the aortic valve are semilunar valves, and their structure resembles half-moons. These semilunar valves are critical in maintaining unidirectional blood flow out of the ventricles and into the arterial system, preventing backflow into the heart.