Examlex
Primary aging is genetic.
Synaptic Transmission
The process by which neurotransmitters are released by one neuron and received by another, allowing for communication between neurons.
Action Potential
A temporary reversal of the electrical polarity of the membrane of a nerve cell or muscle cell, leading to the transmission of signals along the nerve or muscle fiber.
All-or-none Law
The principle that the strength of a response of a nerve or muscle fiber is not dependent on the strength of the stimulus; if a stimulus is above a certain threshold, a nerve or muscle fiber will fire.
Action Potential
A brief electrical charge that travels down an axon, generating a nerve impulse as a response to a stimulus.
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