Hi doctors, was just wondering what is atherosclerosis aorta?

Fatty buildups: In young, healthy individuals the inner lining of the blood vessels is clean and smooth. Overtime, as part of the normal wear and tear, the inner surface of the blood vessels (including the aorta) may start becoming bumpy/lumpy due to fat (cholesterol) deposits called "atherosclerotic plaque". These fatty build ups also lead to hardening (calcium deposits) of the previously flexible vessel wall