Irrespective of what the stimuli entails, the probability that the neuron will fire will be changed by its input.
For instance, if the sum of all the inputs at a given time produce local membrane hyperpolarization, then there will a reduced probability that the neuron will fire an action potential. And vice versa. In other words, the action potential frequency is the only outcome that is possible. However, the value of this frequency can be anywhere from 0-20 cycles per second for most neurons.
A neuron which is excitable is in its RESTING STATE, which means that it is POLARIZED, and thus able to be stimulated into an action potential.
resting potiental
The chief positive intracellular ion in a resting neuron is a potassium ion. Just inside the cell of a resting neuron, the membrane is negative.
A neuron will generate action potential when it is stimulated by a neurotransmitter.
A rapid return to the neuron's resting state
It is a neuron that is at its resting potential, not stimulated by input from other neurons.
A neuron which is excitable is in its RESTING STATE, which means that it is POLARIZED, and thus able to be stimulated into an action potential.
If a resting neuron is stimulated and there is an inward flow of positive charges into the cell, the membrane potential will depolarize, meaning the inside of the cell becomes less negative. This can trigger an action potential if the depolarization reaches the threshold level.
resting potiental
The chief positive intracellular ion in a resting neuron is a potassium ion. Just inside the cell of a resting neuron, the membrane is negative.
A neuron will generate action potential when it is stimulated by a neurotransmitter.
Yes. :)
A rapid return to the neuron's resting state
A neuron is at rest when theinside is negatively chraged compared to the outside.
When a neuron is resting then inside of the cell membrane is more negative than outside.
An impulse begins when a neuron is stimulated by another neuron or by the environment.
-70mV