Final answer:
Impaired blood flow to extremities can be caused by atherosclerosis, hypertension, and diabetes; all of which can contribute to peripheral artery disease.
Step-by-step explanation:
The common disorders that can cause impaired blood flow to the extremities include atherosclerosis, hypertension, and diabetes. These conditions can lead to peripheral artery disease (PAD), which is the narrowing of arteries, most commonly in the legs. Atherosclerosis begins with injury to the endothelium of an artery, potentially caused by factors such as high blood glucose, high blood pressure, and tobacco use, among others. Hypertension can promote arteriosclerosis, thus impairing blood flow. Similarly, over time, diabetes can cause injury to blood vessels and nerves, leading to atherosclerosis and decreased blood supply to extremities.