Mr. Enlow claims: Abraham Lincoln was probably about six years older than his faked birth date of Feb. 12, 1809, and no more resembled Thomas Lincoln than his true half-brother, Wesley Enloe, who shares the same ultra-lanky frame inherited from their father (see a photo comparison).
Heart valve disorders can arise from two main types of malfunctions: Regurgitation (or leakage of the valve). The valve(s) does not close completely, causing the blood to flow backward through the valve. The heart is forced to pump more blood on the next beat, making it work harder. Stenosis (or narrowing of the valve). The valve(s) opening becomes narrowed, limiting the flow of blood out of the ventricles or atria.
There are 4 valves in the heart: tricuspid, pulmonary, mitral, and aortic. Regurgitation is also called insufficiency or incompetence. Regurgitation happens when a valve doesn't close properly and blood leaks backward instead of moving in the proper one-way flow.very time your heart beats, blood flows into, through, and out of your heart. In fact, your heart moves about 100 gallons (379 liters) of blood through your body every hour. Two types of problems can disrupt blood flow though the valves: regurgitation or stenosis.