The First Heart Sound (Lub) Is Produced by the Closing

question 28

Multiple Choice

The first heart sound (lub) is produced by the closing of the ____ and ____ valves.

• A) aortic semilunar; pulmonary semilunar
• B) right atrioventricular; aortic semilunar
• C) left atrioventricular; pulmonary semilunar
• D) right atrioventricular; left atrioventricular
• E) mitral; left atrioventricular

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Definitions:

Poorly Defined

Lacking clear boundaries, descriptions, or criteria, making understanding or interpretation difficult.

Resist Change

The resistance to alter existing processes, habits, or conditions despite potential benefits or pressures.

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Stability refers to the state of being resistant to change and not easily upset or disturbed, often seen as desirable in various contexts such as economy, emotions, and structures.

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The person responsible for an organizational change effort.