Exercise and emergency reactions include
A) increased activity in all parts of the peripheral nervous system.
B) increased activity in the sympathetic division and decreased activity in the parasympathetic division.
C) decreased activity in the sympathetic division and increased activity in the parasympathetic division.
D) increased activity in the enteric nervous system.
E) reduced heart rate and blood pressure.

Question

Quizplus · Accepted Answer

During exercise and emergency reactions, there is a need for increased energy expenditure, which is achieved through the activation of the sympathetic division of the autonomic nervous system. This leads to increased heart rate, elevated blood pressure, and increased respiration rate, allowing for more oxygen to be delivered to the muscles. At the same time, there is a decrease in activity in the parasympathetic division, which normally promotes relaxation and digestion. This shift in autonomic activity allows the body to shift its metabolic state to meet the demands of exercise or emergency situations.

Exercise and Emergency Reactions Include