What Is the Importance of the Delay in the Action

question 68

Multiple Choice

What is the importance of the delay in the action potential in the AV node?

• A)It allows the action potential to reach both ventricles at the same time.
• B)It allows an action potential to reach the left atrium so both atria contract together.
• C)It allows an action potential to reach the left atrium so both atria contract together,before the ventricles contract.
• D)It allows time for the atria to be filled with blood.

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Definitions:

Perfect Competition

A market structure characterized by a large number of buyers and sellers, homogenous products, and the free entry and exit of firms, leading to price-taking behavior.

Market Price

The price at which a good or service is bought and sold in a marketplace, determined by the forces of supply and demand.

Perfect Competitors

Firms operating in a market where there are many sellers and buyers, products are homogenous, and there is free entry and exit from the market.

Short Run

A period in economics during which at least one input (like factory size) is fixed and cannot be changed, contrasting with the long run where all inputs can be varied.