Consider the following three diagrams of a nerve cell membrane. They show resting potential, depolarization, and hyperpolarization. Figure out which one is which, then draw them in the order they occur in a cell that undergoes an action potential outside Na* inside K Nat Na K* Na* K Na potential: -80 mV outside Na K Na inside Na* K Na Na K* potential: +30 mV outside Na Na Na Na Na* K* inside K K potential: -70 mV nish

Consider the following three diagrams of a nerve cell membrane. They show resting potential, depolarization, and hyperpolarization. Figure out which one is which, then draw them in the order they occur in a cell that undergoes an action potential outside Na* inside K Nat Na K* Na* K Na potential: -80 mV outside Na K Na inside Na* K Na Na K* potential: +30 mV outside Na Na Na Na Na* K* inside K K potential: -70 mV nish

Human Physiology: From Cells to Systems (MindTap Course List)

9th Edition

ISBN:9781285866932

Author:Lauralee Sherwood

Publisher:Lauralee Sherwood

Chapter4: Principles Of Neural And Hormonal Communication

Section4.1: Introduction To Neural Communication

Problem 2CYU

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Based upon the changes in permeability seen in the trace below and your knowledge of ion distributions across a cell, predict how ion movements would change during an action potential. Drag and drop each phrase into the appropriate box on the action potential trace. Drag the appropriate labels to their respective targets. Note: not all labels will be used. ►View Available Hint(s) Sodium (Na+) ions move to the axon Sodium (Na) ions move out of the axon Less potassium (K) ions move out of the axon Potassium (K) ions move out of the axon Potassium (K¹) ions move into the axon Sodium (Na) ions stop moving in Membrane potential (mv) +30 +10 0 -10- -30 -50 -70 -90 A PNa 0 PNa 5 6 1 PK Threshold PK 2 Reset Help
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Channel labels Voltage-gated K* channels Voltage-gated Na+ channels Ligand-gated Na+ channels Voltage-gated K* channels lon movement labels K+ exits cell Na+ enters cell K+ exits cell Na+ enters cell Graded potential Depolarization (EPSP) +30 mV -70 Time (msec) +30 mV -70 Depolarization Action potential Time (msec) +30 mV -70 Repolarization Time (msec) +30 mV Hyperpolarization Overshoot -70 Time (msec)
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