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15 Cards in this Set
- Front
- Back
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The nervous system is divided into 2 divisions, what are they?
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Central nervous system=brain and spinal cord
Peripheral nervous system=cranial ners and spinal nerves |
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What r the 3 primary functions of the nervous system?
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1-Sensory
2-Integrative 3-Motor |
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The sensory function of the nervous sytem does what?
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the nervous system detects alterations of internal and external stimuli
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The integrative function of the nervous sytem does what?
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sensory informationis analyzed and appropriate behaviors are selected in response
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The motor function of the nervous sytem does what?
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the appropriate behaviors are implemented
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What does the sypathetic nervous system of the ANS do?
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it prepares the body to deal with emergencies throught eh expenditure of energy. "fight or flight" response
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What does the parasympathetic nervous system of the ANS do?
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restores hemeostatic balance and conserves energy
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What is the function of the cranium? how many bones?
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encloses and protects the brain
8 bones |
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what are the cranial bones?
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1 frontal
2 pariental (sides & top) 1 occipital (back) 2 temporal (sides & front) 1 sphenoid 1 ethmoid |
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what does the brain weight and how many neurons does it have?
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3 pounds
100 billion neurons |
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What are functions of the neurons?
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specialized to gather and evaluate information from the internal and external environment and then respond
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What are meninges?
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protective tissue membranes that enclose the brain and spinal cord
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What are the 3 meninge layers?
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-dura mater
-arachnoid -pia mater |
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What part of the human brain is the largest portion?
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the cerebrum
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which hemesphere is usually the dominate one?
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The left hemesphere 90% of the time. controls verbal, analytical skills
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