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madreJ [45]
4 years ago
13

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

Biology
2 answers:
Temka [501]4 years ago
7 0
<span>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.</span>
enyata [817]4 years ago
4 0

Answer:

c on engenuity

Explanation:

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