After discovering that the shadows outside his window were only the trees in the yard,Ralph's blood pressure decreased and his heartbeat slowed. These physical reactions were most directly regulated by his

Question

Quizplus · Accepted Answer

The parasympathetic nervous system is responsible for slowing down bodily functions and promoting relaxation after a perceived threat or danger has passed. In this case, Ralph's realization that the shadows were harmless trees would activate his parasympathetic nervous system, leading to a decrease in blood pressure and slowed heartbeat.

After Discovering That the Shadows Outside His Window Were Only