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.
As the ventricles begin to contract, the pulmonic and aortic valves are forced open and blood is pumped out of the ventricles through the open valves into the pulmonary artery toward the lungs, the aorta, and the body.he four heart valves make sure that blood always flows freely in a forward direction and that there is no backward leakage. Blood flows from your right and left atria into your ventricles through the open mitral and tricuspid valves. When the ventricles are full, the mitral and tricuspid valves shut.