Question 1 The action of platelet-derived growth factor is to stimulate the production of which cells? Selected Answer: Platele ts • Question 2 1 out of 1 points A healthcare professional is educating a patient about asthma. The professional states that good control is necessary due to which pathophysiologic process? Selected Answer: Uncontrolled inflammation leads to increased bronchial hyperresponsiveness and eventual scarring. • Question 3 1 out of 1 points What is an expected change in the cardiovascular system that occurs with aging? Selected Answer: Arterial stiffening • Question 4 0 out of 1 points People diagnosed with neurofibromatosis have varying degrees of the condition because of which genetic principle? Selected Answer: Dominance Expressivit y • Question 5 0 out of 1 points When endothelial cells are injured, what alteration contributes to atherosclerosis? Selected Answer: The release of toxic oxygen radicals that oxidize low-density lipoproteins (LDLs) Cells are unable to make the normal amount of vasodilating