What will happen if Richard's friend jumps in front of him and scares him?

Richard's central nervous system will take over, and his peripheral nervous system will have a lesser role.

Richard's peripheral nervous system will take over, and his central nervous system will have a lesser role.

Richard's sympathetic nervous system will take over, and his parasympathetic nervous system will have a lesser role.

Richard's parasympathetic nervous system will take over, and his sympathetic nervous system will have a lesser role.

Question

Andrea

Biology

16 March, 16:41

What will happen if Richard's friend jumps in front of him and scares him?

Richard's central nervous system will take over, and his peripheral nervous system will have a lesser role.

Richard's peripheral nervous system will take over, and his central nervous system will have a lesser role.

Richard's sympathetic nervous system will take over, and his parasympathetic nervous system will have a lesser role.

Richard's parasympathetic nervous system will take over, and his sympathetic nervous system will have a lesser role.

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Adeline · Answer 1

Richard's sympathetic nervous system will take over, and his parasympathetic nervous system will have a lesser role. The fight or flight response becomes activated by the sympathetic system. The SNS releases adrenaline and norepinephrine from the medulla of the adrenal glands, increasing the heart rate and breathing, constricting blood vessels and tightening muscles.