Action potentials are propagated more quickly along myelinated axons because of:

A Continuous conduction

B Saltatory conduction

C Increased axon diameter only

D Higher resting potential

✓ Correct Answer: Option B

Myelin insulates the axon, and action potentials jump between nodes of Ranvier (saltatory conduction), greatly increasing speed.

💡 Why is B) the correct answer?

The correct answer to the question "Action potentials are propagated more quickly along myelinated axons because of:" is Option B: Saltatory conduction.

The other options — A) Continuous conduction, C) Increased axon diameter only, D) Higher resting potential — are incorrect for this MCAT Exam Prep question. As explained above: Myelin insulates the axon, and action potentials jump between nodes of Ranvier (saltatory conduction), greatly increasing speed.

📚 About This MCAT Exam Prep Practice Question

This 2-level MCAT Exam Prep question from the Biological & Biochemical Foundations topic is part of BrainForge Quiz's free exam preparation library. Each question includes the correct answer and a detailed explanation to help you understand the underlying concept, not just memorize the answer.

How to use this page: Read the question above, consider all four options (A through D), then check the highlighted correct answer and explanation. For active timed practice, start a free MCAT Exam Prep practice test or use flashcards for spaced repetition review.

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Action potentials are propagated more quickly along myelinated axons because of:

✓ Correct Answer: Option B

📚 About This MCAT Exam Prep Practice Question

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