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Ions
An ion is a molecule that carries an electrical charge. In the context of a neuron, ions are dissolved in both the intracellular and extracellular fluids, and their unequal distribution across the semipermeable membrane is the source of the electrical charge that constitutes the membrane potential.
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Membrane Potential
A neuron's membrane separates an internal fluid from an external fluid. If a large number of positively charged ions are suddenly allowed to move from the external fluid to the internal fluid, how would this movement affect the electrical charge inside the neuron relative to the outside?
A neuron's membrane separates an internal fluid from an external fluid. If a large number of positively charged ions are suddenly allowed to move from the external fluid to the internal fluid, how would this movement affect the electrical charge inside the neuron relative to the outside?