Final answer:
The control of blood flow to skeletal muscles during exercise is mainly under extrinsic control. Nerve signals and hormones can cause vasodilation to increase blood flow to skeletal muscles, while vasoconstriction can occur in other areas to divert blood away from those regions.
Step-by-step explanation:
The control of blood flow to skeletal muscles during exercise is mainly under extrinsic control. This means that factors external to the muscle, such as nerves and hormones, regulate blood flow during exercise. Nerve signals and hormones can cause vasodilation (widening of blood vessels) to increase blood flow to skeletal muscles, while vasoconstriction (narrowing of blood vessels) can occur in other areas, such as the digestive system, to divert blood away from those regions.