To Maintain Cardiac Output Adequate to the Metabolic Needs of the Body

question 53

Multiple Choice

To maintain cardiac output adequate to the metabolic needs of the body in case of heavy blood loss the heart would

• A) speed up its contraction rate
• B) increase the contractility of heart muscle
• C) simultaneously speed up its contraction rate and increase the contractility of heart muscle
• D) the cardiac output will decrease and only the transfusion of blood can help

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Definitions:

Public Good

A good that is non-excludable and non-rivalrous, meaning it can be consumed by many people without depleting and without preventing others from consuming it.

Nonrival

A good or service is nonrival if its consumption by one individual does not reduce its availability to others.

Nonexcludable

A characteristic of public goods: Once a good is produced, no one can be excluded from enjoying its benefits.

Marginal Social Benefit

The additional gain to society as a whole from consuming or producing one more unit of a good or service.