When a Cell Is at Rest, It Has a Membrane

question 28

Multiple Choice

When a cell is at rest, it has a membrane potential of _____ mV.

• A) -30
• B) +30
• C) +70
• D) -70

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Definitions:

Dendrites

Extensions of a neuron that receive signals from other neurons and conduct them toward the cell body.

Nerve Fibers

Extensions of nerve cells that transmit electrical impulses between different parts of the body, essential for communication within the nervous system.

Glial Cell

Cells within the central and peripheral nervous system that are not neurons, which serve to support and safeguard neuronal cells.

Oligodendrocyte

A type of glial cell in the central nervous system that produces myelin, a substance that insulates nerve fibers to enhance signal transmission.