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Practice Question

Which of the following functions does the myelin sheath perform for a nerve cell?

Answer Choices:

Correct Answer:

Insulation

Rationale:

🔌The myelin sheath acts as an insulator around axons, preventing electrical signal loss during transmission.

⚡This insulation allows faster conduction of action potentials through a process known as saltatory conduction.

🧠The sheath is made of lipid-rich cells, which create an electrical barrier and enhance signal efficiency.

🧬Without this insulation, nerve impulses would travel slowly and may fail to reach their targets effectively, affecting coordination and reflexes.

📌Core Message

The myelin sheath plays a key role in electrical insulation, enabling efficient and rapid nerve impulse transmission.

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This question is from SCIENCE 2023 Exam-3 which contains 49 questions.

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SCIENCE 2023 Exam-3

49 Questions

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Question Details
  • Category: ATI TEAS
  • Subcategory: SCIENCE
  • Domain: SCIENCE 2023
  • Answer Choices: 4
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