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[[ファイル:02607en.jpg|400px|left]] Even when the action potential is not being generated, there is a potential inside and outside the neuron membrane.  This potential is called the 'resting membrane potential'.  The largest difference between the resting and action potential is the electric polarity.<br>
[[ファイル:02607en.jpg|400px|left]] Even when the action potential is not being generated, there is a potential inside and outside the neuron membrane.  This potential is called the 'resting membrane potential'.  The largest difference between the resting and action potential is the electric polarity.<br>
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                    inside    outside<br>
resting potential  negative  positive<br>
action potential  positive  negative<br>


The potential of the resting membrane is about -80 mV, and that of action potential is about +20 mV.  The membrane potential is generated by the difference in ion concentration inside and outside the membrane.
The potential of the resting membrane is about -80 mV, and that of action potential is about +20 mV.  The membrane potential is generated by the difference in ion concentration inside and outside the membrane.

2012年9月23日 (日) 14:20時点における版

POINT!
02607en.jpg

Even when the action potential is not being generated, there is a potential inside and outside the neuron membrane. This potential is called the 'resting membrane potential'. The largest difference between the resting and action potential is the electric polarity.


The potential of the resting membrane is about -80 mV, and that of action potential is about +20 mV. The membrane potential is generated by the difference in ion concentration inside and outside the membrane.

Challenge Quiz

1.

Even at rest, resting membrane potential. action potential. overshoot is generated in the neuron membrane.

2.

In resting membrane potential, it is electrically negative. positive inside the membrane.

3.

In action potential, it is electrically negative.positive inside the membrane.

4.

The resting membrane potential of a neuron is about +.- 80. 20. 4 mV.

5.

The action potential of a neuron is about +. - 80.20. 4 mV.

6.

Membrane potential is generated by difference in osmotic pressure.ion concentration. water pressure inside and outside the cell membrane.