Threshold
The neuron adds up all the excitatory and inhibitory inputs and fires when they reach its threshold of excitation.
no it's an "all or nothing"
sodium
Refractory period
The simplest sense, the all-or-none principle of neuronal firing means that a neuron will either fire or it won't, there is no "half" firing. When a neuron receives excitatory input.
Depends on the function of the neuron, the range goes from once per sec to 1000 pulses per sec.
All or none
All or none
you cant but at the cove there is fire
A neuron wouldn't be at rest if it had positive membrane potential. It would fire an action potential. If the neuron remained depolarized then it will fire controllably, and nearby cells are then at risk of being overstimulated. If this activity spreads far enough then it will lead to an epileptic seizure - which is also damaging to neurons.
You cant