Home › NEET UG › biology › Neural Control and Coordination › The 'fight-or-flight' response is primarily medi…
The 'fight-or-flight' response is primarily mediated by the:
ASympathetic nervous system + norepinephrine
BParasympathetic nervous system + acetylcholine
CEnteric nervous system + serotonin
DSomatic nervous system + dopamine
Answer & Solution
Correct answer: A. Sympathetic nervous system + norepinephrine
SYMPATHETIC ANS releases norepinephrine: ↑ heart rate, dilates pupils, breaks down glycogen, dilates bronchi, inhibits digestion. Prepares body for 'fight or flight'. PARASYMPATHETIC: opposite, 'rest + digest'.
Related questions
PARKINSON'S DISEASE is caused primarily by:In the retina of the human eye, the COLOUR + sharp daylight vision is mediated by:A REFLEX ARC (e.g., the knee-jerk reflex) is initiated WITHOUT direct brain involvement beThe cerebral lobe primarily responsible for VISION is the:The neurotransmitter released at the NEUROMUSCULAR JUNCTION is:During the DEPOLARIZATION phase of an action potential, the membrane potential rises becauThe resting membrane potential of a typical neuron is approximately:The long, slender process of a neuron that conducts impulses AWAY from the cell body is th