What Does It Mean That Inhibition of Calcium Channels by Norepinephrine

question 13

Multiple Choice

What does it mean that inhibition of calcium channels by norepinephrine is "voltage-dependent"?

• A) The inhibition of calcium channels by norepinephrine only occurs if the resting membrane potential is depolarized.
• B) Norepinephrine is inhibiting a voltage-gated ion channel.
• C) Norepinephrine is activating a voltage-gated ion channel.
• D) The inhibition of calcium channels by norepinephrine is enhanced by depolarization.
• E) The inhibition of calcium channels by norepinephrine is reduced by depolarization.

---

Definitions:

Predict

To make an educated guess about the future based on data, trends, or patterns.

Female Life Expectancy

The average number of years a female is expected to live based on statistical averages.

Children Birth

The process or event of a child being born; often considered in statistical analyses regarding birth rates or outcomes.

Lurking Variable

A variable that is not included as an explanatory variable in the analysis but can affect the interpretation of relationships between variables.