PHYSIOLOGY
NEUROTRANSMISSION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following is responsible for maintaining the polarity of a neuron?
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sodium ions
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potassium ions
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chloride ions
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sodium-potassium pump
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passive transport
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Explanation:
Detailed explanation-1: -How a sodium potassium pump can maintain a voltage gradient across a cell or neuron’s membrane. The sodium-potassium pump goes through cycles of shape changes to help maintain a negative membrane potential. In each cycle, three sodium ions exit the cell, while two potassium ions enter the cell.
Detailed explanation-2: -In order to maintain this electrochemical gradient, the sodium potassium (Na/K) pump actively transports out three sodium ions for every two potassium ions it brings in. This process generates a net outward current and thus hyperpolarizes the resting potential.
There is 1 question to complete.