Progression of Atherosclerosis
Atherosclerosis develops over time and is thought to begin with an injury to the very innermost layer of our artery or arteries, and this begins a cascade of events that involves the interaction between LDL cholesterol, or the bad cholesterols, and our immune system that eventually results in a large plaque blocking the artery, and there's a lot more detail to this sequence, but this detailed description is provided in your text, and you should read that section very carefully.