Examlex
Discuss the advantages and disadvantages associated with asexual and sexual reproduction.
Myelin Layers
Myelin layers are protective coverings made of fatty substances that surround the axons of some neurons, facilitating the rapid transmission of electrical impulses along nerve cells.
Propagation Speed
The rate at which a wave, including sound, light, or electromagnetic waves, travels through a medium.
Action Potential
A brief change in the electrical charge of a neuronal membrane; the physical basis of the signal that travels the length of the neuron.
Excitation Threshold
The voltage difference between a neuron’s interior and exterior that, if exceeded, causes the neuron to fire.
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