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Lottie Peppers

The Nervous System, Part 2 - Action! Potential!: Crash Course A&P #9 - YouTube - 0 views

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nervous system action potential action potential depolarization repolarization resting state ion channels electorchemistry

shared by Lottie Peppers on 04 Mar 15 - No Cached
  • Lottie Peppers on 04 Mar 15
     
    What do you and a sack of batteries have in common? Today, Hank explains. -- Table of Contents: Ion Channels Regulate Electrochemistry to Create Action Potential 4:51 Resting State 3:22 Depolarization 6:09 Repolarization 7:35 Hyperpolarization 8:00
Lottie Peppers

The Action Potential - YouTube - 0 views

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action potential Na+ K+ Cl- bozemanbiology

shared by Lottie Peppers on 26 Jan 17 - No Cached
  • Lottie Peppers on 26 Jan 17
     
    In this video Paul Andersen details the action potential in neurons. The resting potential of a neuron (-70mV) is maintained through differences in concentration and permeability of Na, K, and Cl ions. A graded potential is created as neurotransmitters from adjacent cells that are either excitatory or inhibitory. If the neuron reaches the threshold of -55mV an opening of voltage-gated sodium channels triggers an action potential
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