Key Terms
- 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