Answer :
Sodium ion do not leave at the beginning of the nerve impulse.
- They leave after the gated channel opens up after receiving a stimulus.
What is a nerve impulse?
- It is an electrical signal that travels along a nerve fiber in response to a stimulus and serves to transmit record of sensation from a receptor or an instruction to act to an effector.
- Nerve impulse begin at dendrite and then move toward the cell body of neuron.
To know more about nerve impulse here
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