| 41. | A contraction will not occur unless an action potential occurs.
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| 42. | Substitution of non-permeant ions for sodium abolishes the action potential.
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| 43. | This model describes how action potentials are initiated and propagated.
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| 44. | In response to a threshold action potential or excitatory way.
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| 45. | This current hyperpolarizes the cell, thus terminating the action potential.
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| 46. | Unlike action potentials, variation potentials are not all or nothing.
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| 47. | It also causes elongation of re-polarisation after an action potential.
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| 48. | Non-spiking neurons propagate messages without eliciting an action potential.
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| 49. | Place cells are generally observed through recorded action potentials.
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| 50. | The action potential spreads throughout rest of the cell.
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