A Letter or a Symbol That Represents One or More

question 57

Multiple Choice

A letter or a symbol that represents one or more numbers is a:

• A)Variable
• B)Equation
• C)Known
• D)Constant
• E)None of these

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Definitions:

Anatomical Feature

Physical characteristics or structures of the body or organs identified in anatomy.

Sodium Ion Gates

Protein channels in cell membranes that open or close in response to stimuli, allowing the flow of sodium ions into or out of the cell, crucial in the generation of action potentials.

Nodes of Ranvier

Gaps in the myelin sheath of nerve fibers, which facilitate rapid conduction of nerve impulses along axons by allowing the impulses to jump from one node to the next.

Myelination

The process of forming a myelin sheath around a nerve to increase the speed at which electrical impulses propagate along the nerve fiber.