Difficulty: Medium
Average Score: 73%
Simulated
Which of the following explains the influence of aging on the development of peripheral vascular disease?
Correct answer
B
Rationale
Aging increases vascular resistance due to arterial stiffening and reduced elasticity from collagen buildup and atherosclerosis. This elevates blood pressure and impairs peripheral blood flow, contributing to PVD. Resistance does not decrease, and viscosity changes are less significant in aging-related PVD.