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13 Cards in this Set
- Front
- Back
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What are the 3 parts of the nervous system |
Brain, spinal cord ,nerves |
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Give the 3 main functions of the nervous system |
Coordinating and controlling all the body activities; serving as a memory bank for future reference; interpreting messages from the 5 senses. |
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Name the 2 types of nerves and explain how they are different |
Sensory nerves carry messages to the brain and spinal cord from all over the body and motor nerves carry messages from the brain and spinal cord to all parts of the body. |
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What is the myelin sheath? |
Fatty like substance that covers a nerve |
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How do nerve cells differ from all other types of cells? |
They don't reproduce, if they die or are damaged they are not replaced |
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What are the functions of the brain? |
Responsible for thinking, emotions, learning memory, sensory interpretation, conscious and unconscious movement, coordinating and regulating all parts of the body |
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Where is the speech center of the brain |
Left side |
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Name 2 main functions of the spinal chord |
Carries messages to and from the brain Controls reflexes |
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How do we hear? Trace the route of sound |
Sound vibrations enter the external ear got to ear canal, ear drum, middle ear bones, nerve reseptors in the inner ear pick up the vibrations and send impulses along the auditory nerve to brain for interp |
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What happens to the nervouse system that makes older adults more accident prone |
Loss of nerve cells, decrease in speed and efficiency of the neurological system |
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List 6 factors that increase your chance of having a stroke |
Smoking, family history, high blood pressure, obesity, high fat diet, arteriosclerosis, unresolved stress |
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List 4 possible causes of convulsions or seizures |
Brain injury, brain infection, high fever, tumor in the brain, stroke, drugs or other toxins, deficiencies of the substances needed by the brain |
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Some people have small warning strokes. List 7 warning signs that may indicate that person is at risk for a major stroke |
Dizzy spells, falls, ringing in the ears, memory loss, behavioral changes, temp weakness or paralysis, temp speech probs, visual disorders, head ache and nausea |
