Nerves outside the brain and spinal cord. Fibers are covered with myelin sheath and neurilemma.

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Prepare for the West-MEC RMA-AMT Module 1 Exam. Use flashcards and multiple-choice questions with hints and detailed explanations to enhance your study experience. Gain confidence and be ready for your exam!

Multiple Choice

Nerves outside the brain and spinal cord. Fibers are covered with myelin sheath and neurilemma.

Explanation:
Nerves outside the brain and spinal cord belong to the peripheral nervous system, and they can carry axons that are insulated by a myelin sheath. In the peripheral nervous system, the myelin is formed by Schwann cells, and the outermost layer around each myelinated fiber is the neurilemma. This combination—nerves located outside the CNS with fibers that have a myelin sheath and a neurilemma—best fits the description. The other options describe either only the insulating layer (myelin sheath), just the outer covering (neurilemma), or a different tissue entirely (muscle tissue), none of which identify the nerves themselves.

Nerves outside the brain and spinal cord belong to the peripheral nervous system, and they can carry axons that are insulated by a myelin sheath. In the peripheral nervous system, the myelin is formed by Schwann cells, and the outermost layer around each myelinated fiber is the neurilemma. This combination—nerves located outside the CNS with fibers that have a myelin sheath and a neurilemma—best fits the description. The other options describe either only the insulating layer (myelin sheath), just the outer covering (neurilemma), or a different tissue entirely (muscle tissue), none of which identify the nerves themselves.

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