When an action potential propagates down a neuron, the charg…
When an action potential propagates down a neuron, the charge across the membrane (membrane potential) increases. This causes the opening of voltage gated Na+ ion channels. When voltage gated Na+ion channels open, Na+ ions are allowed to rush into the cell. This causes the charge across the membrane to increase due to an increase in positive ions in the cell. A larger membrane potential causes more voltage-gated Na+ ion channels to open. This increases the rate at which Na+ ions enter the cell. This further increases the membrane potential, causing even more Na+ ion channels to open, causing more Na+ ions to enter the cell. This is an example of
Read Details[1] covers and protects surfaces inside and outside of the b…
[1] covers and protects surfaces inside and outside of the body. [2] help secure most of the epidermal cells together through intermediate filaments, while [3] allow communication among the epidermal cells. This tissue will have a basal surface that is attached to the basement membrane by [4]
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