<prompt> A 47-year-old man with type II diabetes repos for his 6-month checkup. His doctor prescribes a daily 30-minute routine of walking at a brisk pace. During aerobic exercise, blood flow remains relatively constant to which of the following organs?BrainHeaKidneysSkeletal muscle  <response>: Cerebral blood flow at rest is about 750 mLmin and remains unchanged during any grade of muscular exercise. During exercise, coronary blood flow is increased by four to five times with 100 O2 utilization. Renal blood flow is also decreased by 50-80 in severe exercise. During strenuous exercise muscle blood flow can increase up to 20 times, i.e. about 50-80 mL 100 gmin muscle tissue. 