Concept explainers
To draw:
A graph depicting the changes in potential during depolarization, repolarization, and hyperpolarization as compared to resting membrane potential.
Introduction:
All body cells have a membrane potential, which divides the positive and negative charges throughout the membrane. This potential is associated with uneven distribution of sodium (Na+), potassium (K+) and large intracellular protein anions, between the ICF (intracellular fluid) and the ECF (extracellular fluid) as well as to the plasma membrane's differential permeability. When the cell is electrically resting and does not produce electrical signal, the constant membrane potential is called resting membrane potential.
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Human Physiology: From Cells to Systems (MindTap Course List)
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- describe what the resting membrane potential of a cell is. What is the resting membrane potential of neurons (give units)? What are the two factors that generate the resting membrane potential? Think of scenarios that change the factors that generate the resting membrane potential and how that would change the overall resting membrane potential.arrow_forwardShow a complete circuit diagram of the model of the neuron using the specific numerical values for each component: potassium ion concentration outside: 4.0 mmol/L potassium ion concentration inside: 77.5 mmol/Larrow_forwardExplain the relationship of the resting membrane potential to the two equilibrium potentials.arrow_forward
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