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Answer
If Richard’s friend jumps in front of him and scares him, Richard’s sympathetic nervous system will take over and his parasympathetic nervous system will have a lesser role.
Explanation
The sympathetic nervous system is responsible for the activation of the flight/fight response. The extensive network of neurons regulates the involuntary processes of the body. Through the autonomic nervous system actions that occur without voluntary control are mediated. For example heart rate. The sympathetic and parasympathetic nervous systems complement each other will working.
The four leading causes of death in the united states are :
1. Heart Disease
Could e prevented by doing regular cardio activity
2. Cancer
Avoid smoking. Avoid exposing yourself to sunlight without sun screen
3. Stroke
could be prevented by eating less cholesterol
4. Accidents
Could be prevented by following regulations and not exposing yourself to alcohol before driving
hope this helps
