Phsyiology Week 5
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What is the importance of resting membrane potential? | show 🗑
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show | The difference in the amount of electrical charge inside and outside the cell.
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What is the most concentrated cation in extracellular fluid? | show 🗑
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show | Potassium
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What is the resting membrane potential? on exam | show 🗑
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show | sodium potassium pump, Passive diffusion of sodium-potassium
Entrapment of proteins
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show | The concentration gradients of different ions across the membrane and the permeability of the membrane to those ions
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What happens to the resting membrane potential of a cell if the extracellular K+ concentration increases? | show 🗑
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show | If na+ goes inside cell, -ve ion moves out therefore it becomes more positive.
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Depolirization | show 🗑
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Repolarization | show 🗑
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Hyperpolirization | show 🗑
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show | Decrease in membrane potential
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What causes changes in membrane potential & creates electrical signals? | show 🗑
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What is the resting membrane potential difference? | show 🗑
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Electrical Gradient | show 🗑
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show | The electrochemical gradient for that ion.
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show | The membrane potential that exactly opposes the concentration gradient of an ion is known as the equilibrium potential. The equilibrium potential for any ion can be calculated using the Nerst equation
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Charges of outside + inside cell | show 🗑
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