11. The heart has four valves and the other two are the mitral and the tricuspid valves . 12. The atrioventricular rings serve for the attachment of the muscular fibers of the bicuspid and tricuspid valves . 13. The tricuspid valve has three leaflets or cusps and is on the right side of the heart. 14. Next, the atrioventricular valves are identified, with the tricuspid valve slightly more apical than the mitral valve. 15. The closing of the mitral valve and the tricuspid valve constitutes the first heart sound ( S1 ). 16. Surgical tricuspid valve replacement for severe stenosis ( blockage of blood flow ) has been necessary in some patients. 17. The tricuspid valve of the heart and its function is documented in the treatise " On the Heart ". 18. Some tricuspid valve regurgitation was shown after the procedure that could possibly be due from the right ventricular disc. 19. The tricuspid valve has anterior, posterior, and septal cusps; and the mitral valve has just anterior and posterior cusps. 20. Atrial contraction against a closed tricuspid valve can cause pulsation in the neck and abdomen, headache, cough, and jaw pain.
