Examlex
It is generally accepted that older people's perceptions of their ages are unimportant in determining behavior than their chronological ages.
Initial Segment
The first portion of a nerve cell axon nearest to the cell body, critical for the initiation of neural signals.
Voltage-Regulated Channels
Ion channels in the cell membranes that open or close in response to changes in membrane potential, crucial for the transmission of electrical signals.
Hyperpolarization
A rise in the membrane potential of a cell, resulting in it becoming more negatively charged and reducing its chances of initiating an action potential.
Neuron Plasma Membrane
The membrane surrounding a neuron, controlling the entry and exit of substances, thus maintaining the cell's environment.
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