BIPN100problem

BIPN100problem - More problems on Electrophysiology and AP...

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More problems on Electrophysiology and AP 1. During the action potential, the membrane is more permeable to ______ (Na or K). When the membrane is depolarizing, is permeability to Na increasing or decreasing? When the membrane is repolarizing, is permeability to Na increasing or decreasing? 2. You conduct an experiment with a length of an axon, in which you stimulate an action potential the measure the voltage at various points along the axon. The spread of voltage along the axon is due to the __________ properties of the axon membrane. 3. Describe the two opposing forces that allow for electrochemical equilibrium to be reached across a cellular membrane. 4. You use current clamp methods to inject a constant current into a neuron: a) Draw a passive electrical response of the neuron’s membrane potential. What type of current causes this? b) Draw an active electrical response of the neuron’s membrane potential. What type of current causes this? c) If currents of two different amplitudes are injected into a neuron, both of which cause
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BIPN100problem - More problems on Electrophysiology and AP...

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