Final answer:
During maximal exercise, skeletal muscles can receive up to 85% of the total blood flow to meet the increased metabolic demands and to help dissipate heat.
Step-by-step explanation:
During maximal exercise, the skeletal muscles can receive as much as 85% of the total blood flow. The need for increased blood supply to skeletal muscles during vigorous physical activity is due to the higher metabolic demand and the requirement for oxygen and nutrient delivery as well as waste removal.
The body dynamically adjusts to exercise demands by increasing cardiac output and redistributing blood flow from less active areas, such as the digestive system, to the muscles and the skin, where it helps dissipate heat.