Indicate the results of sympathetic activation of the following structures: sweat glands, eye pupils, adrenal medullae, heart, bronchioles of the lungs, liver, blood vessels of vigorously working skeletal muscles, blood vessels of digestive viscera, salivary glands.

Video transcript

Hey, everyone. Let's take a look at this question together. The primary function of the sympathetic nervous system is to trigger the body's fight or flight response. Which of the following is a result of sympathetic activation. Is it answer choice? A bronchodilation. Answer choice B decreased heart rate. Answer choice C decreased pupil size or answer choice. D inhibition of sweat gland activity. Let's work this problem out together to try to figure out which of the following answer choices is a result of sympathetic activation. So since the sympathetic nervous system is responsible for triggering the body's fight or flight response, we know that sympathetic activation results in the relaxation of the smooth muscles in the bronchial, which allows for increased air flow into the lungs and improving oxygen exchange as a part of the body's fight or flight response. And the term for the relaxation of the smooth muscles in the bronchial is bronchodilation which is answer choice A. So answer choice A is the correct answer since it is a result of sympathetic activation. And answer choice B and C are incorrect. Since the fight or flight response would result in increased heart rate and pupil dilation, which is an increase in pupil size as well as answer choice D is incorrect since the fight or flight response would result in activation of sweat gland activity leaving us with answer choice. A I hope you found this video to be helpful. Thank you and goodbye.