Nervous System Health

Nervous System Health

Author: Aaron Mullally

This lesson will introduce several disorders of the nervous system and will investigate their cause and effect on the brain.

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Video Images: Spike-waves image, Creative Commons: http://bit.ly/SZLLJ9; Meninges image, Public Domain: http://bit.ly/TVXsAA; Encephalitis image, Creative Commons: http://bit.ly/TVXsAA; Concussion image, Creative Commons: http://bit.ly/T07Ffv; Stroke image, Creative Commons: http://bit.ly/l0eIuB; Nerve image, Public Domain: http://bit.ly/QBA9wC; Alzheimer's image, Public Domain: http://bit.ly/UdPl4q; Schizophrenia image, Creative Commons: http://bit.ly/RT86Wt; Child with Autism image, Creative Commons: http://bit.ly/SfOl9T; Autism brain scan, Creative Commons: http://bit.ly/Tv3ztm

  • Concussion

    A type of brain injury where it is “shaken violently”; can cause disruption of neuron activity and should be monitored closely. There are different levels of concussions that can occur.

  • Paralysis

    Complete loss of voluntary function.

  • Seizure

    Sudden, involuntary movement caused by erratic uncoordinated discharges by the brain.

  • Parkinson’s disease

    A disease caused by degeneration of the midbrain (substantia nigra) that causes a marked inability of a person to relax their muscles.

  • Alzheimer’s disease

    A form of dementia caused by a slow degeneration of the cerebral cortex.

  • Meningitis

    Inflammation of the meninges; caused by a bacterial or viral infection.

  • Encephalitis

    Swelling of the brain caused by infection.

  • Multiple sclerosis

    A demyelinating disease that causes motor complications, loss of sensations, and have episodes often referred to as “flare-ups.”

  • Autism

    A class of social disorders in which people have a hard time forming normal social relationships and display repetitive behavior.

  • Schizophrenia

    A psychotic disorder that causes delusions, hallucinations, incoherent speech, inappropriate /negative behavior.