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Refractory Period

(neurology) the time after a neuron fires or a muscle fiber contracts during which a stimulus will not evoke a response.The period of time where an axon of a neurone is inable to transmit further nerve signals immediately after doing so, occurring for about 3 milliseconds. It is possible for another signal to be passed through providing the signal is very strong and superc.


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nerve impulses?!

... nerve impulses along a certain neuron is controlled by A. length of the refractory period B. level of the threshold potential C. polarity of the resting membrane D. intensity ...

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by frogsrcool
Tue Feb 27, 2007 11:07 pm
 
Forum: Cell Biology
Topic: nerve impulses?!
Replies: 5
Views: 645

How does the heart work?

... the Ca(2+) channels are letting calcium flow into the cell. The refractory period is relatively long. Why is it so long? the pacemaker actionpotential is way shorter ...

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by sdekivit
Mon Jan 23, 2006 1:22 pm
 
Forum: Human Biology
Topic: How does the heart work?
Replies: 11
Views: 1531

How does the heart work?

... the Ca(2+) channels are letting calcium flow into the cell. The refractory period is relatively long. Why is it so long?

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by angelo
Sun Jan 22, 2006 2:45 pm
 
Forum: Human Biology
Topic: How does the heart work?
Replies: 11
Views: 1531

Re: impulse transmision...

... Because the ionchannels must change to its original state, there is a period the nerve can't be stimulated, the refractory period. In this period, the nerve can't be excited. With nerve signaling through ...

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by sdekivit
Sat Oct 01, 2005 6:08 pm
 
Forum: General Discussion
Topic: impulse transmision...
Replies: 1
Views: 747


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