The parasympathetic nervous system influences digestion by a. relaxing smooth muscle, b. stimulating peristalsis and secretory activity, c. constricting sphincters, d. none of these.

Video transcript

Everyone. Let's take a look at this question together which of the following activities is accomplished by the sympathetic nervous system. Is it? Answer choice. A enhances gastrointestinal motility. Answer choice B promotes secretion of digestive enzymes. Answer choice C reduces digestive activity or answer choice. D all options are correct. Let's work this problem out together to try to figure out which of the following activities is accomplished by the sympathetic nervous system. So in order to solve this question, we have to recall what the sympathetic nervous system is responsible for. And we note that the sympathetic nervous system is related to our fight or flight response and our fight or flight response is related to an increase in heart rate, blood pressure and breathing. And we note that the opposite of the sympathetic nervous system is the parasympathetic nervous system, which is the rest and digest response. And looking at our answer choices, we can see that answer choice A which says enhances gastrointestinal motility. And answer choice B promotes secretion of digestive enzymes are related to that digestion response in the parasympathetic nervous system. So answer choice A and B are activities accomplished by the parasympathetic nervous system. So answer choice A and B are incorrect, which means that answer choice D is also in correct leaving us with only one remaining answer choice, which is answer choice C reduces digestive activity, which is the correct answer. Since the reduction of digestive activity is an activity accomplished by the sympathetic nervous system. Since the reduction of digestive activity is part of that fight or flight response. Making answer choice C the correct answer, I hope you found this video to be helpful. Thank you and goodbye.