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Resting potential

resting potential

(Science: physiology) The electrical potential of the inside of a cell, relative to its surroundings. Almost all animal cells are negative inside, resting potentials are in the range 20 to 100mV, 70mV typical.

resting potentials reflect the action of the sodium pump only indirectly, they are mainly caused by the subsequent diffusion of potassium out of the cell through potassium leak channels. The resting potential is thus close to the nernst potential for potassium.

See: action potential.


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Intracellular membrane potential of cell and axon

you are talking about resting potential right, I think you are right. They are same.

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by david23
Sat Sep 08, 2012 2:37 am
 
Forum: Physiology
Topic: Intracellular membrane potential of cell and axon
Replies: 1
Views: 5278

Intracellular membrane potential of cell and axon

In looking at simulations of resting membrane changes to a neuron in low Na+ ECF solution, I see that the membrane potential in the intracellular cell body and intracellular axon is the same voltage/value. Even in other ...

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by ayong1970
Fri Sep 07, 2012 6:43 pm
 
Forum: Physiology
Topic: Intracellular membrane potential of cell and axon
Replies: 1
Views: 5278

Re: resting potential- who is right me or my teacher

... ions move across the membrane altough they shouldn't. It maintains the resting potential.

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by biba56
Mon Feb 13, 2012 6:53 pm
 
Forum: Human Biology
Topic: resting potential- who is right me or my teacher
Replies: 1
Views: 837

resting potential- who is right me or my teacher

there was a question about rest state of a neuron on my egzam. What movement of Na+ and/or K+occures during the rest state of a neuron? i marked that there is no movement. Ive made a reserche about this, a big one and i cant find a clear answear so plz someone help me

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by hekke
Tue Jan 31, 2012 7:52 pm
 
Forum: Human Biology
Topic: resting potential- who is right me or my teacher
Replies: 1
Views: 837

Impulse propagation/local circuits and repolarisation

... then the potassium gets outside and causes repolarization (the action potential gets back to starting value) during resting the concentrations of Na+ and K+ are renewed.

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by JackBean
Tue Jan 31, 2012 3:04 pm
 
Forum: Human Biology
Topic: Impulse propagation/local circuits and repolarisation
Replies: 1
Views: 1069
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