Anatomy Exam 3: PNS

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34 Terms

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PNS

has pathways out of the brain + spinal cord

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somatic motor pathways

  • innervate skeletal muscles

    • involuntary actions

  • single neuron in pathway

    • cell body of neuron in spinal cord (or brain)

    • single long axon to muscle

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visceral/autonomic system

  • parasympathetic division

  • sympathetic division

  • enteric division

  • sends signals to cardiac muscle, smooth muscle, glands, and organs

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parasympathetic division

rest and digest

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sympathetic divison

action (fight or flight)

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enteric division

digestive reflexes

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