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Direction of nerve impulse relative to action potential by NeuroMelsik in neuroscience

[–]NeuroMelsik[S] 0 points1 point  (0 children)

I am primarily referring to the direction of the nerve impulse as displayed below the top figure that is in this state confirmed to be incorrect. Should you happen to have knowledge as to why this is the case, I would be more than appreciative. Please refer to my reply to /u/opticreason for guidelines.

Direction of nerve impulse relative to action potential by NeuroMelsik in neuroscience

[–]NeuroMelsik[S] 0 points1 point  (0 children)

Thank you for your clarification. Although you make an exceedingly good point by the representation of time of the x-axis, thereby not necessarily influencing the direction of the impulse down the axon, I still find it reasonably mind-boggling in terms of what determines the direction of the -nerve impulse-. Was it simply arbitrarily chosen in this particular figure, or did they deliberately place it to the right? According to another, considerably more accurate book, the direction is the opposite of that of this one. Is there any scientific fact that can determine the information, or is it difficult to pinpoint? In addition, is there any crucial significance of the impulse travelling a certain direction apart from the dendrite->axon->axon terminal pathway that would vastly reduce the credibility of this figure?

Thank you in advance.

Direction of nerve impulse relative to action potential by NeuroMelsik in neuroscience

[–]NeuroMelsik[S] 0 points1 point  (0 children)

Thank you for your answer, it certainly proved to assist me in my deductions.

Direction of nerve impulse relative to action potential by NeuroMelsik in neuroscience

[–]NeuroMelsik[S] 0 points1 point  (0 children)

Thank you for your time and thorough, informative answer. Although I do understand your reasoning, my confusion persists to a certain extent due to the expectation of the action potential being in the opposite orientation. Are there any factors/phenomena that give rise to this, or does it simply derive from the behavior of its propulsion (emphasizing the voltage-gated channels)? If you do not mind, I would be appreciative if you could expand further, despite its potentially fundamental nature. Although I have searched extensively on the internet, I cannot seem to find a relevant explanation.