PATHOLOGY MCQ
NERVOUS SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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decreases heart rate
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increase heart rate
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reverses symptoms
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makes you fly
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Detailed explanation-1: -During the classic “fight-or-flight” stress response, sympathetic nervous system activation leads to catecholamine release, which increases heart rate and contractility, resulting in enhanced cardiac output.
Detailed explanation-2: -The “fight or flight” reaction makes our breathing shallow and rapid to increase oxygen, making our bodies ready for action.
Detailed explanation-3: -The chain reaction brought about by the fight or flight response can result in the following physical effects: Heart: Increased heart rate; Dilation of coronary blood vessels; Increase in blood flow Increased availability of oxygen and energy to the heart.
Detailed explanation-4: -Your heart rate and blood pressure increase. You’re pale or have flushed skin. Blunt pain response is compromised. Dilated pupils. You’re on edge. Memories can be affected. You’re tense or trembling. Your bladder might be affected. 09-Dec-2019