Action Potentials Move Along Axons

question 48

Multiple Choice

Action potentials move along axons

• A)more slowly in axons of large diameter as compared to those of small diameter.
• B)by the direct action of acetylcholine on the axonal membrane.
• C)by activating the sodium-potassium "pump" at each point along the axonal membrane.
• D)more rapidly in myelinated than in nonmyelinated axons.
• E)by reversing the concentration gradients for sodium and potassium ions.

---

Definitions:

Independent Variables

Variables in an experiment or model that are manipulated or selected by the researcher to determine their effect on dependent variables.

Quantitative Data

Information that can be measured and written down with numbers.

Categorical Data

Data that represents characteristics and can categorize inputs into identifiable segments or classes.

Experimental Studies

Research studies that manipulate conditions to examine the cause and effect relationship between variables.