My book says that the excitability of the nerve is increased when increasing the the potassium ion (K+) concentration in the extracellular fluid and vice versa.
I don't understand this mechanism could someone explain it for me!
Thanks in advance!
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$\begingroup$ Just for reference, what book are you speaking of? $\endgroup$ – rotaredom Nov 15 '17 at 22:05
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$\begingroup$ my physiology book which my college provide. $\endgroup$ – Asmaa Nov 16 '17 at 4:33
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