WASHINGTON, DC - JANUARY 20: U.S. President Donald Trump delivers his inaugural address on the West Front of the U.S. Capitol on January 20, 2017 in Washington, DC. In today's inauguration ceremony Donald J. Trump becomes the 45th president of the United States.
One-Way Valves in the Veins. One-way valves consist of two flaps (cusps or leaflets) with edges that meet. These valves help veins return blood to the heart. As blood moves toward the heart, it pushes the cusps open like a pair of one-way swinging doors (shown on the left).
1 Tricuspid Valve (between the right atrium and the right ventricle). 2  Pulmonary Valve* (semilunar valve between the right ventricle and the pulmonary artery). 3  Mitral Valve (between the left atrium and the left ventricle). Answer   There are two valves in your heart. Between the Right atrium and ventricle there lies an AV-valve (A=atrium) (V=ventricle) hence the name AV-valve. It's al â¦ so called like tricuspid valve...