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 Have any varicose veins treated. 2  Varicose veins are larger, ropy looking veins with nonworking valves, a problem that allows blood to collect inside them. 3  Having your varicose veins treated can reduce the pressure in the legs and prevent the development of additional spider veins, Joseph says. Have any varicose veins treated. 2  Varicose veins are larger, ropy looking veins with nonworking valves, a problem that allows blood to collect inside them. 3  Having your varicose veins treated can reduce the pressure in the legs and prevent the development of additional spider veins, Joseph says.