Answer:
The activation of parasympathetic nervous system results in the relaxation of the GI tract.
Explanation:
Parasympathetic nervous system helps the brain to understand that the danger is now over and it can relax. Hormones named corticotropin and adrenocorticotropin which are realising the body to start working against danger is now going to be relaxed with relaxation of parasympathetic nervous system. This is how sympathetic and parasympathetic nervous system works together co-ordinate together in fight or flight mechanism of the nervous system.
The body fight or flight response is under the control of sympathetic nervous system, which is one part of autonomic nervous system. The another part is parasympathetic nervous system that relaxes and slow down the body's response.
Activation of the parasympathetic nervous system results in::
The parasympathetic nervous system is a part of the central nervous system that is in charge of slowing down the blood pressure in order to make a person calm and to relieve stress.
As a result of this, we can see that there is a need for renin secretion as this enzyme which is produced by the kidney is used to slow down the pressure of tht blood.
Therefore, the correct answer is option D
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