The Component of the Conduction System That Is Called the Pacemaker

question 4

Multiple Choice

The component of the conduction system that is called the pacemaker is the

• A) conducting myofiber
• B) atrioventricular bundle
• C) sinoatrial node
• D) atrioventricular node
• E) bundle branch

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Definitions:

Bones

Rigid organs that constitute part of the endoskeleton of vertebrates, providing support, protection, and aiding in movement.

Joints

Connections between bones that allow for movement and provide mechanical support.

Cell Membrane

The semipermeable membrane surrounding the cytoplasm of a cell, controlling the passage of substances in and out of the cell.

Muscle Fiber

The individual contractile cells of a muscle, composed of myofibrils and capable of producing force and movement.