PATHOLOGY MCQ
NERVOUS SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following statements about action potentials in a given neuron is false?
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They occur after the threshold potential is reached
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They are identical in duration.
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They are identical in magnitude.
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They are propagated down the length of the dendrite.
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Explanation:
Detailed explanation-1: -Answer and Explanation: The correct answer is C) An action potential once started, cannot be stopped or negated.
Detailed explanation-2: -The action potential causes neurotransmitters to be released at the end of the axon, which can subsequently influence other neurons. Incorrect option D: Action potentials travel in both directions, meaning that they can flow either up or down the axon.
There is 1 question to complete.