Which term describes the fatty coating that insulates an axon?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $24.99Unlock all

Prepare for the VCE Psychology Test. Use flashcards and multiple-choice questions with explanations to boost your confidence. Embrace effective study strategies to ace your exam!

Multiple Choice

Which term describes the fatty coating that insulates an axon?

Explanation:
Myelin is the fatty coating that insulates an axon. This insulating sheath, formed by glial cells (oligodendrocytes in the CNS and Schwann cells in the PNS), prevents electrical leakage and enables rapid transmission of nerve impulses through saltatory conduction, where signals jump between gaps called nodes of Ranvier. The neurolemma is the Schwann cell’s outer membrane around the axon and relates to regeneration, not the insulating sheath itself. The synapse is the junction between neurons, and the Golgi apparatus is an internal cell organelle involved in protein processing. So the fatty insulating coating of the axon is myelin.

Myelin is the fatty coating that insulates an axon. This insulating sheath, formed by glial cells (oligodendrocytes in the CNS and Schwann cells in the PNS), prevents electrical leakage and enables rapid transmission of nerve impulses through saltatory conduction, where signals jump between gaps called nodes of Ranvier. The neurolemma is the Schwann cell’s outer membrane around the axon and relates to regeneration, not the insulating sheath itself. The synapse is the junction between neurons, and the Golgi apparatus is an internal cell organelle involved in protein processing. So the fatty insulating coating of the axon is myelin.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy