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Sunday, February 27, 2011

resting potential of a neuron

neuron. 11.1.3 Define resting potential and action potential.

neuron. 11.1.3 Define resting potential and action potential.

Here's an animation of an action potential in a neuron.

Here's an animation of an action potential in a neuron.

The Neural Membrane and Resting Potential

The Neural Membrane and Resting Potential

neuron action potential. The picture above makes it more clear.

neuron action potential. The picture above makes it more clear.

At the leading edge of an action potential, sodium gates open,

At the leading edge of an action potential, sodium gates open,

Excess ions are subsequently pumped in/out of the neuron.

Excess ions are subsequently pumped in/out of the neuron.

The membranes of all nerve cells have a potential difference across them,

The membranes of all nerve cells have a potential difference across them,

The cause of the action potential is an exchange of ions across the neuron

The cause of the action potential is an exchange of ions across the neuron

Four Factors interact to produce the Resting Potential: CH04F04.BMP

Four Factors interact to produce the Resting Potential: CH04F04.BMP

and action potential inside Medical literature does

and action potential inside Medical literature does

An action potential generated at the axon hillock results in the changes of

An action potential generated at the axon hillock results in the changes of

Overview for a typical neuron. Two plots of the membrane potential (measured

Overview for a typical neuron. Two plots of the membrane potential (measured

The action potential is what gives rise to synapses; and is the building

The action potential is what gives rise to synapses; and is the building

The resting potential is maintained by the action of ion pumps.

The resting potential is maintained by the action of ion pumps.

Resting potential

Resting potential

The resting membrane potential for a neuron is about -70mV. (see Figure 3)

The resting membrane potential for a neuron is about -70mV. (see Figure 3)

This allows the membrane potential to come back to the normal resting

This allows the membrane potential to come back to the normal resting

The action potential at one membrane site provides a stimulus to adjacent

The action potential at one membrane site provides a stimulus to adjacent

The neuron starts at resting membrane potential which is around -70 mv

The neuron starts at resting membrane potential which is around -70 mv

In the case of neurons the so-called transmembrane resting potential is

In the case of neurons the so-called transmembrane resting potential is