The Nodes of Ranvier

question 13

Multiple Choice

The nodes of Ranvier:

• A)Are distributed approximately every 1 to 2 millimeters (mm)along the membrane of the cell axon.
• B)Contain a high density of modality-gated K⁺ channels for rapid depolarization of the membrane.
• C)Contain a high density of voltage-gated Na⁺ channels for rapid repolarization of the membrane.
• D)Have low membrane capacitance,preventing the accumulation of electrical charge.
• E)Are heavily myelinated,which allows for rapid diffusion of an electrical potential.

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Definitions:

Resilience

The capacity to recover quickly from difficulties; toughness.

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A Finnish concept referring to a unique form of resilience or courage in the face of adversity.

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