What Axonal Characteristic Facilitates the Propagation of an Action Potential

question 18

Multiple Choice

What axonal characteristic facilitates the propagation of an action potential along a myelinated axon?

• A) Voltage-gated Na+ and K+ channels are concentrated in the myelinated axonal segments.
• B) Voltage-gated Na+ and K+ channels are concentrated in the unmyelinated axonal segments.
• C) Voltage-gated Na+ channels are concentrated in the myelinated axonal segments; voltage-gated K+ channels are concentrated in the unmyelinated axonal segments.
• D) Voltage-gated K+ channels are concentrated in the myelinated axonal segments; voltage-gated Na+ channels are concentrated in the unmyelinated axonal segments.
• E) Voltage-gated Na+ K+ channels are spread evenly throughout both myelinated and unmyelinated segments.

---

Definitions:

Structural Functionalism

A sociological theory that views society as a complex system whose parts work together to promote solidarity and stability, focusing on social structures and their functions.

Large-scale Social Structures

The overarching frameworks and institutions that shape societies, including economies, political systems, and social norms, influencing individual and group interaction.

Institutions

Established organizations or foundational systems within a society that dictate and regulate patterns of behavior or norms, such as legal or educational systems.

Actors

Individuals or entities that take action or play a role in a particular process, system, or context, contributing to its dynamics.