Each of the Following Mechanisms Plays a Role in the Return

question 71

Multiple Choice

Each of the following mechanisms plays a role in the return of blood to the heart via veins EXCEPT which one?

• A) osmotic pressure exerted by plasma proteins in the blood
• B) squeezing action of skeletal muscles
• C) valves that permit the one-way flow of blood returning to the heart and prevent backflow
• D) pressure changes in the abdominal and thoracic cavities associated with breathing

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Definitions:

Efficiency

The ratio of the useful output of a system to the input, expressed in percentage form, indicating the effectiveness with which it converts energy or material into desirable outputs.

Property Damage Liability

A component of auto insurance that covers damage you, as the driver, might cause to another person's property.

Underinsured Driver

A motorist who has insurance coverage, but not enough to cover the full costs of a claim from an accident.

Depreciation Rate

The rate at which an asset loses its value over time, often used for accounting and tax purposes.