medicnia20
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“Explain why the membrane potential in an axon is the same when medium or high pressure is applied to the fingertip. [3 marks]”

i’m having a little trouble actually putting together an answer, any help is super appreciated
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caviaporcellus
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I'm pretty sure this is referring to the "all or nothing principle" of an action potential. So remember that in order to trigger an action potential, the membrane potential must reach -55 mV. What does this tell you about the medium and high pressure, if they both elicit the same response?
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macpatgh-Sheldon
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With high pressure, more neurons reach the threshold and undergo action potentials.
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medicnia20
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(Original post by caviaporcellus)
I'm pretty sure this is referring to the "all or nothing principle" of an action potential. So remember that in order to trigger an action potential, the membrane potential must reach -55 mV. What does this tell you about the medium and high pressure, if they both elicit the same response?
oh right, of course. thanks so much!
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