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Ion channels

(noun) Plural form of ion channel.

See ion channel for definition and additional information.


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Re: Depolarization = ion channel opening?

I think you are correct (or more precisely when the Na+ channels open since the K+ open later). There is a threshold voltage that switches the state of what I found to be a flip-flop. The circuit is also called a "monostable multivibrator".

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by GaryGaulin
Thu Jan 08, 2015 6:01 am
 
Forum: Cell Biology
Topic: Depolarization = ion channel opening?
Replies: 1
Views: 656

Depolarization = ion channel opening?

Hi huys, I have a problem with this statement: "Action potentials are formed when a stimulus causes the cell membrane to depolarize past the threshold of excitation, causing all sodium ion channels to open." Isn't the cell membrane depolarized BECAUSE the ion channels ...

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by autumnsphere
Wed Oct 29, 2014 2:18 pm
 
Forum: Cell Biology
Topic: Depolarization = ion channel opening?
Replies: 1
Views: 656

Too many ions inside a neuron cell. What happens?

... effectively, and so it remains open, rapidly building up a concentration of sodium ions in the cell, and this disorder often affects potassium channels, so there is practically no way that the excess sodium ions can escape as they rush into the neuron. What happens when (too many) sodium ions ...

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by Coelacanth
Tue Dec 03, 2013 1:34 am
 
Forum: General Discussion
Topic: Too many ions inside a neuron cell. What happens?
Replies: 1
Views: 2399

Re: Why must we avert the genome of Eden?

... shouldn't be in their genome. Sponges don't have a nervous system, yet they have many of the genes which required for building synapses (sodium channels). Again, this makes absolutely no sense in the Darwinian framework, but it makes perfect sense if the GOE is real. Dr Kenneth S. Kosik the ...

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by wildfunguy
Fri Oct 04, 2013 7:49 pm
 
Forum: Evolution
Topic: Why must we avert the genome of Eden?
Replies: 6
Views: 14528

Why must we avert the genome of Eden?

... shouldn't be in their genome. Sponges don't have a nervous system, yet they have many of the genes which required for building synapses (sodium channels). Again, this makes absolutely no sense in the Darwinian framework, but it makes perfect sense if the GOE is real. Dr Kenneth S. Kosik the ...

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by Hunor
Mon Sep 23, 2013 12:08 am
 
Forum: Evolution
Topic: Why must we avert the genome of Eden?
Replies: 6
Views: 14528
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