The plaques of atherosclerosis cause the three main kinds of cardiovascular disease 1  : Coronary artery disease: Stable plaques in the heart's arteries cause angina (chest pain on exertion). 2  Sudden plaque rupture and clotting causes heart muscle to die. 3  This is a heart attack, or myocardial infarction.hat causes your white blood cells to stream in to digest the LDL. Over years, the accumulating mess of cholesterol and cells becomes a plaque in the wall of the artery. Plaque is a jumble of cholesterol, cells, and debris that creates a bump on the artery wall. As atherosclerosis progresses, that bump gets bigger.
Top definition Stromatolite unknown 1)A widely distributed sedimentary structure consisting of laminated carbonate or silicate rocks, produced over geologic time by the trapping, binding, or precipitating of sediment by groups of microorganisms, primarily cyanobacteria.
Stromatolite fossils are evidence of the earliest life on the earth. Western Australia perhaps has the best stromatolite fossils, giving a record through the eons of time. Fossils of the earliest known stromatolites, about 3.5 billion years old, are to be found near Marble Bar in the Pilbara. Hamelin Pool gives an indication of what the earth may have looked like 3.5 billion years ago when stromatolites were widespread.