「Nerve06/autonomic nervous system and synapses/characteristics of synapses」の版間の差分

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{{QuizTitle}}
{{QuizTitle}}
<GIFT>
<GIFT>
//LEVEL:2
//LEVEL:2
//RAND
//RAND
At synapses, transmission is one-way {=true.~false}  
At synapses, transmission is one-way {=true~false}  
 
 


//LEVEL:3
//LEVEL:3
//RAND
//RAND
At synapses, because of chemical transmission, the speed, compared to conduction is {~fast.=slow}.
At synapses, because of chemical transmission, the speed, compared to conduction is {~fast~=slow}.
 
 




//LEVEL:3
//LEVEL:3
//RAND
//RAND
If, after the first action potential arriving at the pre-synaptic membrane, there was one action potential generated in the post-synaptic membrane, and after the second action potential arriving at the pre-synaptic membrane, there were two action potentials generated in the post-synaptic membrane,  {=potentiation.~fatigue} took place.
If, after the first action potential arriving at the pre-synaptic membrane, there was one action potential generated in the post-synaptic membrane, and after the second action potential arriving at the pre-synaptic membrane, there were two action potentials generated in the post-synaptic membrane,  {=potentiation~fatigue} took place.
 
 


//LEVEL:3
//LEVEL:3
//RAND
//RAND


If, after the first action potential arriving at the pre-synaptic membrane, there was one action potential generated in the post-synaptic membrane, and after the second action potential arriving at the pre-synaptic membrane, there were no action potential generated in the post-synaptic membrane,  {~potentiation.=fatigue} took place.
If, after the first action potential arriving at the pre-synaptic membrane, there was one action potential generated in the post-synaptic membrane, and after the second action potential arriving at the pre-synaptic membrane, there were no action potential generated in the post-synaptic membrane,  {~potentiation~=fatigue} took place.
 
 




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//LEVEL:3
//LEVEL:3
//RAND
//RAND
Synapses have {=high.~low} sensitivity to drugs.
Synapses have {=high~low} sensitivity to drugs.
 
 


//LEVEL:3
//LEVEL:3
//RAND
//RAND
Pre-synaptic membrane is located at {=nerve ending.~neuronal cell body.~dendrites}.
Pre-synaptic membrane is located at {=nerve ending~neuronal cell body~dendrites}.
</GIFT>
</GIFT>

2014年11月18日 (火) 21:43時点における版

<synaptic delay>

02700en.jpg

Compared to conduction within a neuron, synaptic transmission is a time-consuming process. The time it takes for one synaptic transmission is said to be one millisecond.

<fatigue>

02519en.jpg

With repeated synaptic transmission, decrease in the transmitter and efficiency of transmission may take place. With such 'fatigue' an action potential arriving at the pre-synaptic membrane, may not be able to elicit action potential in the post-synaptic membrane.


<synaptic potentiation>

02701en.jpg

With repeated synaptic transmission, increase in the transmitter, post-synaptic membrane and efficiency of transmission may take place. With such 'potentiation' an action potential arriving at the pre-synaptic membrane, may elicit many action potentials in the post-synaptic membrane.

<one-way> At synapses, pre and post are determined. It is a one-way mechanism.

<sensitive to drug effects>

Challenge Quiz

1.

At synapses, transmission is one-way true false

2.

At synapses, because of chemical transmission, the speed, compared to conduction is fast slow .

3.

If, after the first action potential arriving at the pre-synaptic membrane, there was one action potential generated in the post-synaptic membrane, and after the second action potential arriving at the pre-synaptic membrane, there were two action potentials generated in the post-synaptic membrane, potentiation fatigue took place.

4.

If, after the first action potential arriving at the pre-synaptic membrane, there was one action potential generated in the post-synaptic membrane, and after the second action potential arriving at the pre-synaptic membrane, there were no action potential generated in the post-synaptic membrane, potentiation fatigue took place.

5.

Synapses have high low sensitivity to drugs.

6.

Pre-synaptic membrane is located at nerve ending neuronal cell body dendrites .

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