How do the catecholamines released by the adrenal medulla affect the body?

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Raise blood glucose levels by promoting glycogen breakdown in liver and muscle tissuesLower the concentration of free fatty acids and ketone bodies in the bloodstreamEnhance blood flow to the splanchnic regionAre regulated by the parasympathetic nervous system

Explanation

Catecholamines secreted by the adrenal medulla increase blood glucose by stimulating glycogenolysis in liver and muscle cells. They do not reduce free fatty acids or ketone bodies, nor do they increase splanchnic blood flow. Their release is controlled by the sympathetic, not parasympathetic, nervous system.