the rising phase, which ion channel is responsible for action potential returning to its resting Vm, and why? Na* channels, because positive Na* ions are at higher concentration outside the axon than inside, and so they enter the axon and raise Vm Na channels, because positive Na* ions are at higher concentration inside the axon than outside, and so they leave the axon and raise Vm O K* channels, because positive K* ions are at higher concentration outside the axon than inside, and so they enter the axon and raise V m K* channels, because positive K* ions are at higher concentration inside the axon than outside, and so they leave the axon and lower V.

Human Anatomy & Physiology (11th Edition)
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Author:Elaine N. Marieb, Katja N. Hoehn
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4.3. After the rising phase, which ion channel is responsible for action potential returning to its
resting V
and why?
Na channels, because positive Na* ions are at higher concentration outside the axon than inside,
and so they enter the axon and raise V
O Na* channels, because positive Na* ions are at higher concentration inside the axon than outside,
and so they leave the axon and raise V,
m
O K* channels, because positive K* ions are at higher concentration outside the axon than inside, and
so they enter the axon and raise Vm
U K* channels, because positive K* ions are at higher concentration inside the axon than outside, and
so they leave the axon and lower Vm
Transcribed Image Text:4.3. After the rising phase, which ion channel is responsible for action potential returning to its resting V and why? Na channels, because positive Na* ions are at higher concentration outside the axon than inside, and so they enter the axon and raise V O Na* channels, because positive Na* ions are at higher concentration inside the axon than outside, and so they leave the axon and raise V, m O K* channels, because positive K* ions are at higher concentration outside the axon than inside, and so they enter the axon and raise Vm U K* channels, because positive K* ions are at higher concentration inside the axon than outside, and so they leave the axon and lower Vm
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