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Nervous System Nervous System
Objectives <ul><li>Identify anatomy and physiology of the nervous system </li></ul><ul><li>Recognize common symptoms of th...
Identify anatomy and physiology of the nervous system <ul><li>Functions </li></ul><ul><li>Gather sensory input (afferent) ...
Breakdown of the Nervous System(s)
Recognize common symptoms of the nervous system <ul><li>Headache </li></ul><ul><li>Weakness </li></ul><ul><li>Nausea and v...
Recognize common laboratory and diagnostic tests  <ul><li>Reflexes </li></ul><ul><li>Lumbar puncture </li></ul><ul><li>CT,...
Meningitis <ul><li>Medical emergency:  inflammation of the meninges </li></ul><ul><li>Caused by Haemophilus influenza type...
Bell’s Palsy <ul><li>Paralysis of muscles on one side of the face (7 th  cranial nerve) </li></ul><ul><li>Caused by tumors...
CVA-TIA <ul><li>CVA= Cerebrovascular Accident </li></ul><ul><li>TIA= Transient Ischemic Attack </li></ul><ul><li>Ischemic ...
CVA/TIA: how can you tell??? <ul><li>Smile </li></ul><ul><li>Raise both arms </li></ul><ul><li>Speak a simple sentence </l...
Multiple Sclerosis <ul><li>Destruction of myelin sheath (protects axons) </li></ul><ul><li>May be immunological, viral , g...
Concussion <ul><li>Grade 1: mild; no loss of consciousness; dazed </li></ul><ul><li>Grade 2: more severe; no loss of consc...
Shaken Baby Syndrome <ul><li>Shaken baby syndrome is a severe form of head injury caused by the baby's brain rebounding in...
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121 Week 9 Nervous System

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121 Week 9 Nervous System

  1. 1. Nervous System Nervous System
  2. 2. Objectives <ul><li>Identify anatomy and physiology of the nervous system </li></ul><ul><li>Recognize common symptoms of the nervous system </li></ul><ul><li>Recognize common laboratory and diagnostic tests for diseases of the nervous system </li></ul><ul><li>Differentiate various diseases of the nervous system Meningitis Bell’s Palsy CVA/TIA Multiple Sclerosis Concussion (Shaken Baby Syndrome) </li></ul>
  3. 3. Identify anatomy and physiology of the nervous system <ul><li>Functions </li></ul><ul><li>Gather sensory input (afferent) </li></ul><ul><li>Integrates info (to CNS) </li></ul><ul><li>Responds with motor output (efferent) </li></ul><ul><li>Acetylcholine Dopamine GABA Glutamate Nor epinephrine Serotonin </li></ul>
  4. 4. Breakdown of the Nervous System(s)
  5. 5. Recognize common symptoms of the nervous system <ul><li>Headache </li></ul><ul><li>Weakness </li></ul><ul><li>Nausea and vomiting </li></ul><ul><li>Motor disturbances (stiff neck or back, rigid muscles, seizures, convulsions, paralysis) </li></ul><ul><li>Sensory disturbances (vision or speech) </li></ul><ul><li>Drowsiness, stupor, coma </li></ul><ul><li>Mood swings </li></ul><ul><li>Fever </li></ul>
  6. 6. Recognize common laboratory and diagnostic tests <ul><li>Reflexes </li></ul><ul><li>Lumbar puncture </li></ul><ul><li>CT, MRI </li></ul><ul><li>EEG </li></ul><ul><li>EMG </li></ul>
  7. 7. Meningitis <ul><li>Medical emergency: inflammation of the meninges </li></ul><ul><li>Caused by Haemophilus influenza type B, neisseria meningitis </li></ul><ul><li>Signs/symptoms: severe H/A, vomiting, seizures, nuchal rigidity </li></ul><ul><li>Dx’d by lumbar puncture </li></ul><ul><li>Tx with ABO, isolation </li></ul>
  8. 8. Bell’s Palsy <ul><li>Paralysis of muscles on one side of the face (7 th cranial nerve) </li></ul><ul><li>Caused by tumors, vascular ischemia, autoimmune or virus </li></ul><ul><li>Signs/symptoms: facial weakness, drooping mouth, decrease sense of taste, unable to close eye of affected side </li></ul><ul><li>Dx’d by physical exam </li></ul><ul><li>Tx with electrical stimulation; massage </li></ul>
  9. 9. CVA-TIA <ul><li>CVA= Cerebrovascular Accident </li></ul><ul><li>TIA= Transient Ischemic Attack </li></ul><ul><li>Ischemic Stroke </li></ul><ul><li>Hemorrhagic Stroke </li></ul><ul><li>Commonly called Stroke or Brain Attack </li></ul>
  10. 10. CVA/TIA: how can you tell??? <ul><li>Smile </li></ul><ul><li>Raise both arms </li></ul><ul><li>Speak a simple sentence </li></ul><ul><li>Stick out your tongue </li></ul>
  11. 11. Multiple Sclerosis <ul><li>Destruction of myelin sheath (protects axons) </li></ul><ul><li>May be immunological, viral , genetic </li></ul><ul><li>Signs/symptoms: transient motor and sensory disturbances </li></ul><ul><li>Dx’d by CSF analysis, CT, MRI </li></ul><ul><li>Tx is symptomatic; corticosteroids; avoidance of temp extremes </li></ul>
  12. 12. Concussion <ul><li>Grade 1: mild; no loss of consciousness; dazed </li></ul><ul><li>Grade 2: more severe; no loss of consciousness and no recall of event </li></ul><ul><li>Grade 3: loss of consciousness; amnesia </li></ul>
  13. 13. Shaken Baby Syndrome <ul><li>Shaken baby syndrome is a severe form of head injury caused by the baby's brain rebounding inside of the baby's skull when shaken. </li></ul><ul><li>In this injury there is bruising of the brain, swelling, pressure, and bleeding (intracerebral hemorrhage). </li></ul><ul><li>This can easily lead to permanent, severe brain damage or death. </li></ul>

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