Mitral valve

The video tutorial explains the role of heart valves in the cardiovascular system, focusing on the mitral valve. It covers the anatomy, function, and location of the mitral valve, also known as the bicuspid valve, which is one of the atrioventricular valves. The tutorial describes how the mitral valve is connected to the ventricular walls via the cordi tenderoni and papillary muscles, forming the subvalvular apparatus. It highlights the importance of the mitral valve in preventing backflow during cardiac systole and its contribution to the heart's 'Lub' sound.

Explain how the opening and closing of the heart valves is regulated.

What sound is produced when the atrioventricular valves close, and what does it signify?