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7 Cards in this Set
- Front
- Back
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what is the function of transducers?
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convert E from the stimulus into electrical energy
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what is the receptor potential of a membrane?
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receptor potential measures how much depolarization is occurring?
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what are the two factors in the graded response that is depolarization?
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reception potential directly proportional to strength of stimulus
ex: more pressure=greater response |
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where does depolarization happen?
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at the sensory neuron
- the larger the receptor potential the more frequent the action potential |
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what are the two ways the body adapts to a stimulus?
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1. receptor sensitivity decreases
-produces smaller recept. pot. 2. change of synaps due to a decrease in release of neuron transmitters |
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what stimulus does mechano receptors respond to?
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touch or pressure by merkel disks in the skin.
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what stimulus do chemoreceptors respond to?
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taste and smell
they are wet senses taste-dissolves in saliva smell-dissolve in mucus taste-depolarization in receptor cell smell-action potential in olfactory nerve |
