🔬 MCAT Exam Prep

The myelin sheath in the peripheral nervous system is produced by:

A Oligodendrocytes
B Schwann cells
C Astrocytes
D Microglia

✓ Correct Answer: Option B

Schwann cells myelinate axons in the PNS. In the CNS, oligodendrocytes perform this function.

💡 Why is B) the correct answer?

The correct answer to the question "The myelin sheath in the peripheral nervous system is produced by:" is Option B: Schwann cells.

The other options — A) Oligodendrocytes, C) Astrocytes, D) Microglia — are incorrect for this MCAT Exam Prep question. As explained above: Schwann cells myelinate axons in the PNS. In the CNS, oligodendrocytes perform this function.

📚 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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