Artificial heart valve Artificial heart valve An artificial heart valve is a device implanted in the heart of a patient with valvular heart disease. When one of the four heart valves malfunctions, the medical choice may be to replace the natural valve with an artificial valve. This requires open-heart surgery. Valves are integral to the normal physiological functioning of the human heart. Natural heart valves are evolved to forms that perform the functional requirement of inducing unidirectional blood flow through the valve structure from one chamber of the heart to another. Natural heart valves become dysfunctional for a variety of pathological causes. Some
Ray Liotta life. Liotta's parents were both Democrats. Liotta recalls attending parades handing out flyers for his father's run for Township Committee. He graduated from Union High School in 1973 in Union, New Jersey where he grew up. Liotta graduated from the University of Miami, where he received a degree in fine arts in 1978 and studied acting with Robert "Buckets" Lowery. He performed in musicals such as "Cabaret", "Dames at Sea", "Oklahoma", and "Sound of Music", during college, especially in his first year of acting studies. After college, Liotta moved to New York City. He got a job as a bartender