Dictionary » C » Channels

Channels

Channel

a furrow, gutter, or groovelike passageway.

See: canal.

Origin: L. Canalis


Please contribute to this project, if you have more information about this term feel free to edit this page



Results from our forum


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".

See entire post
by GaryGaulin
Thu Jan 08, 2015 6:01 am
 
Forum: Cell Biology
Topic: Depolarization = ion channel opening?
Replies: 1
Views: 658

Depolarization = ion channel opening?

... "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 open?

See entire post
by autumnsphere
Wed Oct 29, 2014 2:18 pm
 
Forum: Cell Biology
Topic: Depolarization = ion channel opening?
Replies: 1
Views: 658

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 ...

See entire post
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 ...

See entire post
by wildfunguy
Fri Oct 04, 2013 7:49 pm
 
Forum: Evolution
Topic: Why must we avert the genome of Eden?
Replies: 6
Views: 14530

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 ...

See entire post
by Hunor
Mon Sep 23, 2013 12:08 am
 
Forum: Evolution
Topic: Why must we avert the genome of Eden?
Replies: 6
Views: 14530
View all matching forum results

This page was last modified 21:16, 3 October 2005. This page has been accessed 3,468 times. 
What links here | Related changes | Permanent link