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18 Cards in this Set
- Front
- Back
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Which are the main functions of the nervous system ? |
Senses changes (stimuli) within andoutside the body, analyzes sensory information and responds to stimuli. |
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. How many kinds ofcells do we have ? |
We only have two kinds of cells. |
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Which ones are the cells ? |
Neuroglia: serve numerous support and protectivefunctions for the neurons.Neurons: conduct impulses from one part of the body to another. |
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Which are the parts of a neuron ? |
Dendrites, cell body, myelin sheat andaxon. |
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What does a dendrite do ? |
It responds to external signals andstimulate trough binding of receptor sites. |
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What does the cell body do ? |
It serves asintegration center and carries out basic metabolism. |
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What does the axon do ? |
It conductssignals over long distances. |
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What does the synaptic terminal do ? |
It releasesneurotransmitters and communicates with other cells. |
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How is the communication between neurons ? |
They communicate by: synapses,neurotransmitters and ion gradients and excitatory and inhibitory potentials. |
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What ions does the ionic pump keep inside ? |
It keeps potassium ions and large organicions. |
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What are the ions that are outside ? |
They are sodium and chloride ions. |
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Which system controls everything you do? |
Nervous system. |
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How is the nervous system made up? |
Brain, spinalcord and nerves |
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Which part of the body is the control center for thenervous system? |
Brain |
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What is the biggest part of the brain? |
Cerebrum. |
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Which part of the brain keeps you breathing? |
Brain stem. |
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Nerve cell: |
Neuron. |
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How is the central nervous system made up? |
Brain andspinal cord. |
