The Fibrous Skeleton of the Heart Functions to

question 59

Multiple Choice

The fibrous skeleton of the heart functions to

• A)maintain the shape of the heart.
• B)physically isolating the atrial muscle cells from the ventricular muscle cells.
• C)help distribute the force of contraction of the heart.
• D)reinforcing the heart valves.
• E)All of the answers are correct.

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Definitions:

Marginal Physical Product

The additional output that is produced by employing one more unit of an input, holding other inputs constant.

Substitution Effect

The economic understanding that as prices rise, or income decreases, consumers will replace more expensive items with less costly alternatives.

Output Effect

The impact on total production and economic output resulting from changes in price levels, influencing the quantity supplied or demanded.

Marginal Physical Product

The additional output that can be produced by adding one more unit of a specific input, while holding other inputs constant.