<Ul> <Li> Acceleration of heart and lung action </Li> <Li> Paling or flushing, or alternating between both </Li> <Li> Inhibition of stomach and upper - intestinal action to the point where digestion slows down or stops </Li> <Li> General effect on the sphincters of the body </Li> <Li> Constriction of blood vessels in many parts of the body </Li> <Li> Liberation of metabolic energy sources (particularly fat and glycogen) for muscular action </Li> <Li> Dilation of blood vessels for muscles </Li> <Li> Inhibition of the lacrimal gland (responsible for tear production) and salivation </Li> <Li> Dilation of pupil (mydriasis) </Li> <Li> Relaxation of bladder </Li> <Li> Inhibition of erection </Li> <Li> Auditory exclusion (loss of hearing) </Li> <Li> Tunnel vision (loss of peripheral vision) </Li> <Li> Disinhibition of spinal reflexes </Li> <Li> Shaking . </Li> </Ul> <Li> Acceleration of heart and lung action </Li> <Li> Paling or flushing, or alternating between both </Li> <Li> Inhibition of stomach and upper - intestinal action to the point where digestion slows down or stops </Li>

Part of brain responsible for flight or fight