The action action potential produced needs to reach the threshold for the AP to be propagated. If it doesn't reach the threshold, there is not enough Na+ to stimulate the positive feedback system which allows the action potential to be self-propagated. Instead, K+ channels will be opened, and it will enter repolarisation phase, and the AP wll not be conducted.
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How does a nerve impulse follow the all-or-nothing principle???
It is the "skipping" pattern that impulses follow to travel down nerve axons.
the spinal nerve sends nerve impulses away from the CNS
nerve impulses
Nerve impulses are electrical signals.
vagus nerve
Nerve impulses are measured in MiliVolts (mv)
No, that is just nerve impulses
Neuron
No, axons carry impulses away from the nerve cell body.
Impulses carried by the olfactory nerve are for the sense of smell.
Nerve impulses do not carry information, they only carry impulses. It is the brain and spinal cord that interpret that impulse into information.