I have read about artherosclerosis and I understand that it is a phenomenon caused by external lipidic cells coming into the body and creating a plaque that, when it breaks, will obstruct the artery.
The fact that it only affects "big arteries" is my understanding from wikipedia:
Most of the time, patients realize that they have the disease only when they experience other cardiovascular disorders such as stroke or heart attack
Actually I might be wrong because it also mentions:
These symptoms, however, still vary depending on which artery or organ is affected
My question is: Why do artherosclerosis affects only big arteries like aorta or cerebral arteries, and not the entire bloodstream grid of the body?
PS: I also read articles from INSERM but they do not mention where artherosclerosis happens.