An Epithelial Cell Can Be Divided into Two Functional Regions

question 5

Multiple Choice

An epithelial cell can be divided into two functional regions. They are the ________ and the basal surface.

• A) apical
• B) pinnacle
• C) topical
• D) crest
• E) apogeal

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Definitions:

Afterpotential

Afterpotential is the transient electrical polarization that follows the action potential in nerve cells or muscle fibers, impacting the cell's excitability.

Depolarization

A decrease in the difference in electrical charge across a cell's plasma membrane, making the inside of the cell less negative compared to the outside.

Hyperpolarization

Hyperpolarization is an increase in a cell's membrane potential, making it more negative and less likely to fire an action potential.

Repolarization

The process of restoring the negative charge inside a neuron or muscle cell after depolarization, preparing it for another action potential.