Click to add t Nerve Impulses
.
,17.3.7 define nerve impulse
A nerve impulse is the way nerve cells (neurons) communicate with
one another. Nerve impulses are mostly electrical signals along the
dendrites to produce a nerve impulse or action potential.
The action potential is the result of ions moving in and out of the cell.
Specifically, it involves potassium (K+) and sodium (Na+) ions. The ions
are moved in and out of the cell by potassium channels, sodium
channels and the sodium-potassium pump.
, Neurons, like other cells, are more
negatively charged inside than
outside
This results in a membrane potential
of about – 70 milliVolts
This is called the resting potential of
the neuron.
.
,17.3.7 define nerve impulse
A nerve impulse is the way nerve cells (neurons) communicate with
one another. Nerve impulses are mostly electrical signals along the
dendrites to produce a nerve impulse or action potential.
The action potential is the result of ions moving in and out of the cell.
Specifically, it involves potassium (K+) and sodium (Na+) ions. The ions
are moved in and out of the cell by potassium channels, sodium
channels and the sodium-potassium pump.
, Neurons, like other cells, are more
negatively charged inside than
outside
This results in a membrane potential
of about – 70 milliVolts
This is called the resting potential of
the neuron.
