It is the abnormal leaking of blood backwards from the left ventricle, through the mitral valve, into the left atrium, when the left ventricle contracts, i.e. there is regurgitation of blood back into the left atrium. MI is the most common form of valvular heart disease.t is the abnormal leaking of blood backwards from the left ventricle, through the mitral valve, into the left atrium, when the left ventricle contracts, i.e. there is regurgitation of blood back into the left atrium. MI is the most common form of valvular heart disease.
Illinois is the most populous of the states and North Dakota the least. A 2012 report from the United States Census put the population of the Midwest at 65,377,684. The Midwest is divided by the Census Bureau into two divisions. The East North Central Division includes Illinois, Indiana, Michigan, Ohio and Wisconsin, all of which are also part of the Great Lakes region.
I think this is bulls**t. The Midwest, to me, reaches as far west as Minnesota, and as far south as Missouri. To settle the debate, I polled 20 random coworkers about which states belonged in the club. The directions were clear: Take this blank map and shade in the states you think are Midwestern. This is not a test, and there are no wrong answers. It was definitely a test, and there were definitely wrong answers.