The tricuspid and mitral valves lie between the atria and ventricles. The aortic and pulmonic valves lie between the ventricles and the major blood vessels leaving the heart. The heart valves work the same way as one-way valves in the plumbing of your home. They prevent blood from flowing in the wrong direction
Developing self-esteem is important because it helps you <span> think good concerning yourself and it can also influence your imaginative thinking.</span>
