The Nervous System. Chapter 44. Nervous System Organization. All animals must be able to respond to environmental stimuli Sensory receptors – detect stimulus Motor effectors – respond to it Nervous system links the two Consists of neurons and supporting cells.
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The Nervous System
Brain and Spinal Cord
"fight or flight"
"rest and repose"
central nervous system (CNS)
peripheral nervous system (PNS)
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Knee-jerk reflex is monosynaptic
Most reflexes in vertebrates involve a single interneuron