What Structure Serves as the Backup Pacemaker for the Heart

question 19

Multiple Choice

What structure serves as the backup pacemaker for the heart?

• A)atrioventricular (AV) node
• B)sinoatrial node
• C)bundle of His
• D)Purkinje fibers

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Definitions:

Branding

The process of creating a unique name, design, and image for a product or service, making it distinguishable from others in the market.

Packaging

The process or materials used to protect, contain, identify, and provide information about a product.

Visual Elements

Components such as colors, shapes, layout, and imagery that contribute to the aesthetic appeal and effectiveness of a design or artwork.

Symbolic Value

The significance or meaning that objects or actions hold beyond their practical use, often culturally driven.