neuro part 1 SNS and diagnostic.txt

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neuro part 1 SNS and diagnostic.txt
2012-10-21 20:35:53
neuro part SNS diagnostic tests

neuro part 1 SNS and diagnostic tests
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  1. Sensory nervous system
    • sends information to tbe CNS from internal organs or from external stimuli
    • sensations detected by receptors
    • carried by sensory neurons from specialized organs to specific areas of the cerebral cortex
  2. Motor nervous system
    part of the frontal lobe
  3. Primary motor cortex
    • carries info from CNS to organs, muscles and glands
    • controls discrete skeletal muscle movement
    • stimulation of right cortex produces muscle contractions on the left or contralateral side of body
  4. Premotor motor cortex
    controls coordinated muscle movement
  5. Supplemental motor area
    involved in planning complex movements and in coordinating movements with both hands
  6. Lumbar puncture and spinal tap
    • to obtain CSF for diagnostic procedures
    • to treat disease by administering antibiotics or cancer agents into the spinal canal
    • to administer local anesthetics
    • to remove CSF for decreasing spinal fluid pressure
  7. Angiography
    allows visualization of cerebral circulation by use of radiopaque materials
  8. Computed tomography scans (CT)
    used for diagnosing pathological conditions such as tumors, hemorrhages, hematomas, hydrocephalus
  9. Electromyelography (EMG)
    radiographic process using contrast medium injected into lumbar subarachnoid space to view and photograph spinal cord and spinal subarachnoid space
  10. Electroencephalography (EEG)
    records electrical activity of the brain (brain wave)
  11. Magnetic resonance imaging (MRI)
    • noninvasive technique using a powerful magnetic field to align hydrogen atoms in water in the body
    • provides much greater contrast between the different soft tissues of the body than CT scan
  12. Ophthalmoscopy
    examines interior structure of the eye, including the lens, retina and optic nerve
  13. Tonometry
    measures the pressure inside the eye (intraocular pressure - IOP)
  14. Auditory examiniation
    used to determine tone quality and/or hearing loss