PHYSIOLOGY
NEUROTRANSMISSION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The change in the resting membrane potential from-70mv to-72mv is due to slight numbers of sodium moving into the neuron from a high concentration to a lower concentration of sodium.
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True
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False
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Either A or B
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None of the above
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Explanation:
Detailed explanation-1: -The Sodium/Potassium Pump (ATPase) is responsible for maintaining the membrane potential at-70mv, the protein actively pumps three sodium ions out of the cell and pumps two potassium ions into the cell. The neurone becomes stimulated.
Detailed explanation-2: -In humans this is said to be around-70 mV. This means that the inside of the cell is negatively charged in comparison to the outside. Resting membrane potentials are maintained by two different types of ion channels: the sodium-potassium pump and the sodium and potassium leak channels.
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