A) fight and flight response
B) autonomic nervous system
C) sympathetic nervous system
D) para sympathetic nervous system
E) Both and
Correct Answer: E
Solution :
Sympathetic Nervous System (SNS) is the autonomous nervous system with adrenergic nerve fibres, which releases adrenaline. It increases the functioning of visceral organs. It increases heart beat, respiration dilates the pupil, rises blood pressure etc. It also controls the secretion of adrenaline by adrenal medulla which functions as emergency hormone. It induces fight, flight and fright reactions. So also called fight-flight-system. It works antagonisiic to Parasympathetic Nervous System (PNS). Watching a horror movie or under stress conditions, sympathetic nervous system is activated secreting adrenaline. It causes high heart-beat, high respiration and inhibits the salivation and secretion from digestive glands making mouth dry.
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