Respuesta :
Valves are 4 anatomical structures that exist between the different cardiac chambers and that order the direction of the blood flow so that it does not go back once it enters the heart.
The heart valves are located in pairs between the ventricles and atria, to ensure that the blood is directed in only one direction, that is, it does not allow this fluid to return through the chambers where it has already fulfilled its function.
- Heart valves are classified according to their position, structure and function in the heart, in two atrioventricular and two semilunar.
- Valves work in the heart depending on changes in the pressure inside the chambers.
Therefore, we can conclude that the four valves of the heart allow blood flow to reach the heart and prevent it from flowing in the wrong direction.
Learn more about the heart valves here: https://brainly.com/question/9203078