If a Motor Neuron in the Body Were Stimulated by an Electrode

question 51

Multiple Choice

If a motor neuron in the body were stimulated by an electrode placed about midpoint along the length of the axon, _________.

• A) the impulse would move to the axon terminal only, and the muscle contraction would occur
• B) the impulse would spread bidirectionally
• C) muscle contraction would occur
• D) the impulse would move to the axon terminal only

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Definitions:

Experimental Conditions

Specific arrangements or settings made to test hypotheses in a controlled manner during scientific experiments.

Equal Chance

The principle or condition of having the same opportunities or possibilities as others, without discrimination or bias.

Experimental Research

A research methodology that involves manipulating one or more variables to determine their effect on a certain outcome, allowing for cause-and-effect inferences.

Independent Variable

In experimental and research settings, it is the variable that is manipulated or changed to observe its effects on a dependent variable.