Neuro eng Q's part 2 - The neuronal membrane potential...

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Kevin Creager EE 485 Chapter 3 Questions 4. There is a much greater K+ concentration inside the cell than outside. Why, then, is the resting membrane potential negative? The resting membrane potential is negative because the neuron is filled with negatively charged molecules that do not travel through the cell membrane channels the same way that an ion does. 5. When the brain is deprived of oxygen, the mitochondria within neurons cease producing ATP. What effect would this have on the membrane potential? Why?
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Unformatted text preview: The neuronal membrane potential depends on different concentrations of sodium and potassium on either side of the membrane. Ionic concentration gradients are established by the action of the sodium-potassium pump. This pump requires ATP. Without ATP, the pump will not function. If the pump stops functioning the resting membrane potential will not exist and therefore the brain will not function....
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