PHYSIOLOGY
NEUROTRANSMISSION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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accurate concentrations of sodium ions outside the membrane and potassium ions inside the membrane.
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the correct ion gated protein channels intermittently scattered along the membrane itself.
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the membrane must be slightly negative charged. This is due to the structural components phosphate and sulfate of the membrane and its proteins along and within it.
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all other options are the correct conditions.
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Detailed explanation-1: -Answer and Explanation: The correct order by which a neuron obtains a stimulus, generates an action potential, and then returns to resting membrane potential (RMP) is: stimulus-> threshold-> depolarization-> repolarization-> RMP.
Detailed explanation-2: -The action potential is an explosion of electrical activity that is created by a depolarizing current. This means that some event (a stimulus) causes the resting potential to move toward 0 mV. When the depolarization reaches about-55 mV a neuron will fire an action potential.
Detailed explanation-3: -The neuron’s membrane potential gets generated via a difference in the concentration of charged ions. The lipid bilayer of the neuronal cell membrane acts as a capacitor, the transmembrane channels as resistors.