An Action Potential Begins at a Special Place, the Axon

question 8

Multiple Choice

An action potential begins at a special place, the axon hillock, adjacent to the soma of a motor neuron. You record an action potential 30 cm away on an efferent nerve. The action potential measured far away from the soma

• A) Is much smaller than the action potential near the soma because it decays with distance.
• B) Is smaller, but not much, because the decay with distance is prevented by myelination
• C) Is larger than the one at the soma because it is amplified at each new area of membrane
• D) Is the same size as the action potential near the soma because it is regenerated anew along the axon
• E) Is the same size as the action potential near the soma because there is no decay of potentials in axons

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Definitions:

Population Proportion

A measure that represents the fraction or percentage of individuals in a population who meet a specific criterion.

Sample Size

The quantity of data points or observations gathered during an experiment or research study.

Confidence Interval

An interval of values, sourced from statistical sampling, that is likely to maintain the value of a covert population parameter.

Population Variance

The variance calculated from the entire population of data points, providing a measure of how much the data points in the population differ from the mean.