PATHOLOGY MCQ
ENDOCRINE SYSTEM
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What is the change of a cell membrane from positive to negative called?
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Glycolysis
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Action Potential
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Temporal Summation
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Electrolysis
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Explanation:
Detailed explanation-1: -Hyperpolarization is when the membrane potential becomes more negative at a particular spot on the neuron’s membrane, while depolarization is when the membrane potential becomes less negative (more positive).
Detailed explanation-2: -Repolarization refers to the change in membrane potential that returns it to a negative value just after the depolarization phase of an action potential has changed the membrane potential to a positive value.
Detailed explanation-3: -An action potential is a rapid sequence of changes in the voltage across a membrane. The membrane voltage, or potential, is determined at any time by the relative ratio of ions, extracellular to intracellular, and the permeability of each ion.
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