The Insulating Layer of Fatty Material That Covers the Axon

question 308

Multiple Choice

The insulating layer of fatty material that covers the axon of many neurons is called the:

• A)axon sheath.
• B)myelin sheath.
• C)glial cover.
• D)glial insulator.

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Definitions:

Intracellular Cation

Positively charged ions found within the cells, playing critical roles in cell function, including in the generation of electrical impulses.

K+

Potassium ions, essential for various cellular functions including nerve signal transmission and muscle contraction.

Serum Electrolyte

Minerals found in blood and other body fluids that carry an electric charge and are essential for the normal function of cells and organs.

mEq/L

Milliequivalents per liter, a unit of measure used to express the concentration of electrolytes (like sodium, potassium, and chloride) in a solution.