HISTOLOGY
NERVOUS TISSUE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which describes a depolarized nerve?
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Positively charged inside, negatively charged outside
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Negatively charged inside, negatively charged outside
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Negatively charged inside, positively charged outside
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Positively charged inside, positively charged outside
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Explanation:
Detailed explanation-1: -Neurons actually have a pretty strong negative charge inside them, in contrast to a positive charge outside. This is due to other molecules called anions. They are negatively charged, but are way too big to leave through any channel. They stay put and give the cell a negative charge inside.
Detailed explanation-2: -This means that the interior of the cell is negatively charged relative to the outside. 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).
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