Nervous System

Description

Behavioural Neuroscience Mind Map on Nervous System, created by lynda_ashford_25 on 21/10/2013.
lynda_ashford_25
Mind Map by lynda_ashford_25, updated more than 1 year ago
lynda_ashford_25
Created by lynda_ashford_25 over 10 years ago
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Resource summary

Nervous System
  1. Central Nervous System- brain and spinal cord
    1. Spinal cord- within the spinal column that communicates with all sensory organs and muscles
      1. Dorsal roots- enter the spinal cord, carrying sensory information
        1. at the back, away from the stomach
          1. Dorsal root ganglia- the cell body of the sensory neurons are in clusters of neurons outside the spinal cord
          2. Ventral roots- exit the spinal cord, carrying motor information
            1. at the front, towards the stomach
        2. Peripheral Nervous System- connects the CNS to the rest of the body
          1. Somatic Nervous System- consists of the axons conveying messages from the sensory organs to the CNS and from the muscles to the CNS
            1. Autonomic Nervous System- controls the heart, intestines, and other organs. Prepares the body for vigorous activity. Consists of gnaglia just to the left and right of the spinal cords central regions.
              1. Sympathetic Nervous System- prepares organs for 'flight or fight'.
                1. increased breathing and heart rate, decreased digestive activity
                2. Parasympathetic Nervous System- restores organs to nonemergancy status
                  1. decreased heart rate and breathing, increases digestive activity
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