1 / 23

Nervous System Disorders

Nervous System Disorders. Cerebral Palsy. Symptoms: spastic shaking or tremors; loss of motor control Causes: damage to motor areas of the brain during fetal development, birth, or infancy

mills
Download Presentation

Nervous System Disorders

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Nervous System Disorders

  2. Cerebral Palsy • Symptoms: spastic shaking or tremors; loss of motor control • Causes: damage to motor areas of the brain during fetal development, birth, or infancy • Treatment: Irreversible but not progressive; surgeries & physical therapy may help

  3. Cerebral Palsy

  4. Epilepsy • Symptoms: seizures; convulsions - different types & vary in severity • Causes: sudden burst of irregular electrical activity in brain - reason this occurs not always known • Treatment: medications

  5. Epilepsy

  6. Parkinson’s Disease • Symptoms: persistent shaking or tremors at rest, shuffling gait, rigid facial muscles - progressive • Causes: lack of dopamine (disorder of the basal ganglia - inhibition of motor drive) • Treatment: relieve symptoms with drugs such as L-dopa

  7. Parkinson’s Disease

  8. Stroke (CVA) • Symptoms: paralysis & loss of feeling on one side of the body • Causes: disruption of blood flow to brain as a result of a blood clot OR broken blood vessels (hemorrhage) • Treatment: immediate treatment to relieve pressure allows for best chance of recovery; physical therapy may help . . .

  9. Stroke (CVA)

  10. Multiple Sclerosis • Symptoms: jerky body movements, double vision, partial paralysis of voluntary muscles, loss of motor control … • Causes: autoimmune; destruction of myelin sheath & scarring in CNS leads to short circuiting of nerve pathways • Treatment: incurable, varies among individuals, may undergo periods of remission

  11. Multiple Sclerosis

  12. Poliomyelitis • Symptoms: headache, fever, sore throat, listlessness, stiffness, deep muscle pain & weakness, paralysis & death • Causes: virus that destroys cell bodies of motor neurons in the CNS • Rare due to immunization

  13. Poliomyelitis

  14. Alzheimer’s Disease • Symptoms: mental deterioration characterized by memory loss, short attention span, disorientation, language loss, “sundowning” - irritable, moody, confused, violent, hallucinations • Causes: ? shortage of acetylcholine - structural changes in the brain: gyri shrink, ventricles enlarge, brain atrophies & contains abnormal protein deposits & neurofibrillar tangles • Treatment: progressive - some medications may slow down the disease process

  15. Alzheimer’s Disease Interactive Tour

  16. Huntington’s Disease • Symptoms: wild, jerky, flapping movements, mental deterioration, progressive • Causes: genetic - dominant gene; massive degeneration of basal nuclei & cerebral cortex; overstimulation of motor drive • Treatment: drugs that block dopamines effects

  17. Huntington’s Disease

  18. Nervous Disorders Video Clip

  19. Developmental Aspects of the Nervous System 1. Hypothalamus • Oxygen • Cephalocaudal • Gross • Blood Pressure • Circulatory problems • Senility • CVA

  20. Brain Dysfunctions • E - Concussion = slight & transient brain injury • F - Contusion = traumatic injury that destroys brain tissue 3. D - Coma = total nonresponsiveness to stimulation

  21. Brain Dysfunctions • B - Cerebral edema & G - Intercranial hemorrhage = may cause medulla to be wedged into foramen magnum • B - Cerebral edema = after head injury, retention of water by brain • C - CVA = results when a brain region is deprived of blood or exposed to prolonged ishemia

  22. Brain Dysfunctions 7. A - Alzheimer’s disease = progressive degeneration of the brain with abnormal protein deposits • H - Multiple Sclerosis = autoimmune disorder with extensive demyelination • I - TIA = a mini-stroke; fleeting symptoms of a CVA

  23. The End

More Related