Ok so what you are saying is that the particles are pushed into the arterial walls which builds plaque. At some point some of that plaque breaks off and causes

Ok so what you are saying is that the particles are pushed into the arterial walls which builds plaque. At some point some of that plaque breaks off and causes a blockage --> heart attack / TIA / Stroke. Agree biggest concern is what is causing damage to the arterial walls. To be fair --> fat + cholesterol attach to the wall in order to repair the arterial wall so, fat does attach to the wall. I'm guessing the scar tissue cell matter attaches to the cholesterol+fat which is trying to repair the wall.