The Cardiac Skeleton

question 14

Multiple Choice

The cardiac skeleton

• A) forms fibrous rings around the atrioventricular and semilunar valves.
• B) serves as electrical insulation between the atria and ventricles.
• C) provides a rigid source of attachment for cardiac muscle.
• D) provides solid support for the heart valves.
• E) has all of these characteristics.

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Definitions:

Full Employment

A situation in an economy where all available labor resources are being used in the most efficient way possible, typically with low unemployment.

Cyclical Unemployment

The component of overall unemployment that results from economic recessions or expansions, directly correlating with the cyclical trends in the growth of the economy.

Structural Unemployment

Employment decline due to the transformation of the industrial landscape, primarily influenced by technological progress, rather than changes in demand or supply dynamics.

Structural

Pertaining to the intrinsic, essential framework or construction of something, often used in contexts like structural reforms in economics or structural engineering.