Fundamentals of the Nervous System and Nervous Tissue

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Author:
rloong
ID:
305209
Filename:
Fundamentals of the Nervous System and Nervous Tissue
Updated:
2015-07-15 01:35:39
Tags:
Human Anatomy
Folders:
Anatomy
Description:
Bio125
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  1. The nervous system has three overlapping functions:
    • Sensory input
    • Integration
    • Motor ouput
  2. Central Nervous System (CNS)
    • consists of your brain and spinal cord 
    • it is the integrating and command center of the nervous system
    • it receives incoming sensory signals, interprets these signals, and dictates motor responses
  3. Peripheral Nervous System (PNS)
    • the part of the nervous system outside the CNS
    • consists mainly of the nerves that extend from the brain and spinal cord
  4. Functional Organization of the PNS:
    • Both sensory input and motor output are divided according to body region
    • ↓ Somatic body region or Visceral body region
    • Further divided into four main subdivisions:
    •      Somatic sensory
    •      Visceral Sensory
    •      Somatic Motor or Voluntary Motor
    •      Visceral Motor or Autonomic Nervous System (ANS)
    •      ↓ Further divided:
    •           Sympathetic division
    •           Parasympathetic divison

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