The valves concerning the atria and ventricles are known as the atrioventricular valves. In between the proper atrium and the ideal ventricle could be the tricuspid valve. The tricuspid valve has three cusps,[22] which hook up with chordae tendinae and three papillary muscles named the anterior, posterior, and septal muscles, https://thomasv456vtr9.nico-wiki.com/user