Why Are Action Potentials Usually Conducted in One Direction

question 7

Multiple Choice

Why are action potentials usually conducted in one direction?

• A) The axon hillock has a higher membrane potential than the terminals of the axon.
• B) Voltage- gated channels for both Na+ and K+ open in only one direction.
• C) The brief refractory period prevents reopening of voltage- gated Na+ channels.
• D) Ions can flow along the axon in only one direction.
• E) The nodes of Ranvier conduct potentials in one direction.

---

Definitions:

Type II Error

A statistical mistake of failing to reject a false null hypothesis, missing an actual effect or difference when it exists.

Power

In statistics, power refers to the probability that a test will reject a false null hypothesis, essentially measuring the test's capability to detect an effect if there is one.

Body Mass Index

A numerical computation using height and weight to classify an individual's body weight status.

Type I Error

A statistical error that occurs when a null hypothesis is incorrectly rejected when it is actually true.