NEUR 2201 Lecture Notes - Lecture 7: Resting Potential, Rc Circuit, Nernst Equation
2 Jan 2019
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Document Summary
Understand the intracellular recording technique and what information it gives us about the electrical properties of neurons. Demonstrate knowledge of the resting potential and how various ionic concentration affect the resting potential of a neuron. Describe the spread of local graded potentials in a neuron and the propagation of action potentials along a nerve fiver and understand how these depend on the electrical properties of the cytoplasm and cell membrane recall. When an electrical current is moving along the inside of a fiber the cytosol experts a resistance (membrane resistance) Current will also escape through the bilayer (with resistance) to the outside; and due to electrostatic forces, a buildup of charge will take place along the bilayer. Capacitance is related to a neuron because it has the ability to store and separate charge (+++ outside, --- inside) Heads are conductors, fatty tails are insulators.
