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homeostasis
maintenance of equilibrium and stability necessary for human life
nervous system
system that includes the brain and spinal cord (the central nervous system) and an intricate network of nerves (the peripheral nervous system)
neurons
the basic units of the nervous system
neurotransmission
the transmission of electrochemical information between neurons
neurotransmitter
a chemical messenger that results in action, inaction, or inhibition of a neuron
parasympathomimetic
drugs that stimulate or mimic the parasympathetic nervous system (rest and digest)
sympathomimetics
drugs that stimulate or mimic the sympathetic nervous system (fight or flight)
synapse
the space between two neurons
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