<prompt> Which of the following statements about Atherosclerosis is true:Intake of Unsaturated Fatty Acids is associated with decreased riskExtent of lesions in veins is similar as that in aeriesThoracic Aoa is more commonly involved than abdominal aoaHypercholesterolemia alone does not increase the risk of atherosclerosis per se  <response>: Answer is A Intake of Unsaturated Fatty Acids is associated with decreased risk The maximal benefit is observed with Omega 3 Poly-unsaturated Fatty Acids, however Mono-unsaturated Fatty Acids also have consistent anti-atherosclerotic benefits and both Poly-unsaturated Fatty Acids PUFA and Monounsaturated Fatty Acids MUFA are considered Cardioprotective Fatty Acids. Hypercholestoremia alone may increase the risk of Atherosclerosis Hyperlipidemia and more specifically hypercholesterolemia is a major risk factor lb,. atherosclerosis. Even in the absence of other factors, hypercholesterolemia is sufficient to stimulate lesion development. - Robbins 8th497 Extent of Athrosclerosis is more severe in aeries than in veins Atherosclerosis is always severe in areas where pressure and velocity are high as in aeries in contrast to areas where pressure and velocity are low as in veins. Overall atherosclerosis is more severe in high-pressure aeries than in pulmonary aeries with lower blood pressure. It is least severe in veins where pressure and velocity are lowest - Pan - Vascular Medicine by Topol 200290 Abdominal Aoa is more commonly involved than Thoracic Aoa Abdominal Aoa is more commonly involved than Thoracic Aoa. Within the abdominal aoa lesions tend to be more prominent around the ostia - Med Essentials Kaplan Publishing 2007249 In the systemic circulation severity is accentuated in the abdominal aoa and large aeries of the lower limb where pulse wave reflection and summation effect elevate the pulse and systolic pressures. The disease is more severe in large rather than small vessels indicating the impoance of mural tension and Reynolds number both of which are propoional to radius increasing the likelihood and severity of effects of blood flow disturbance at aerial forks, junctions and curvatures.- Pan Vascular Medicine 