Which Statement Is Not True About the Development of an Action

question 38

Multiple Choice

Which statement is not true about the development of an action potential?

• A)There is a rapid change in polarity from about -70mV to about +40mV
• B)It can be produced by an electric shock or sudden pH change
• C)The action potential ends when the polarity across the membrane reaches +40 mV
• D)Depolarization occurs when sodium gates open and allow sodium ions to enter the cell
• E)Potassium gates open after the sodium gates and allow potassium ions to leave the cell

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Definitions:

Prostaglandins

Local hormones derived from lipid molecules. Prostaglandins typically do not travel in the bloodstream to find their target cells because their targets are close by. These hormones have numerous effects, including uterine stimulation during childbirth.

Local Hormones

Hormones that act locally without first entering the bloodstream, often involved in local regulatory processes such as inflammation.

Steroidal

Pertaining to or relating to steroids, a group of fat-soluble organic compounds with various physiological effects, including hormonal activity and anti-inflammatory properties.

Nonsteroidal

Referring to drugs or substances that do not contain steroids, commonly mentioned in the context of anti-inflammatory medications.