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Action Potential - Nervous Communication Ep 3 - Zoë Huggett Tutorials

There are four main stages to an action potential: depolarisation, repolarisation, hyperpolarisation, and the return to resting potential. Voltage-gated ion channels are needed for these processes.

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Why does the intensity of an action potential once generated at the trigger zone remain undistured throught the axon?

What causes this consistency? I read the previously asked questions on this site none of them carry an answer to this question.

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Action Potentials

Action potentials are brief, rapid, large changes in the membrane potential in which the potential actually reverses. They are usually initiated as a result of spread from graded potentials. Simil…

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Resting Membrane Potential

“Maintenance of resting membrane potential. The action of Na+/K+ ATPase, Na+ leak channels, and K+ leak channels creates and maintains a resting membrane potential of -70mV” until threshold is reached at ~-55 to -40 mV.

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Action Potential

When an action potential occurs at one node (of Ranvier; whith a lots of voltage-gated Na+ and K+ channels) the same intracellular and extracellular currents are created except that the myelin dramatically reduces the current across the membrane so that the current that flows to the next node is strong enough to generate an action potential. This continues down the length of a myelinated axon with the action potential jumping from one node to the next.

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Difference Between Pharynx and Larynx | Definition, Anatomy, Function

What is the difference between Pharynx and Larynx? Pharynx is located just behind the mouth while larynx is located at the C3-6 vertebral levels. Pharynx ..

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the action potential in an active reaction is described by two different diagrams, one with arrows pointing
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Action potential quiz

Can you fill in the blanks? Get answers: https://drawittoknowit.com/course/fundamental-neuroscience/glossary/neuroscience/action-potentials #ditki #usmle #meded #medschool #medstudent #highered #physiology #actionpotential #nervoussystem #nursing #pance #physicianassistant #osteopath #allopath #medicine #science #healthscience #nurse #premed #mcat #mbbs

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Why does the intensity of an action potential once generated at the trigger zone remain undistured throught the axon?

What causes this consistency? I read the previously asked questions on this site none of them carry an answer to this question.

277

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