Which Event Causes the QRS Wave on an ECG Tracing

question 23

Multiple Choice

Which event causes the QRS wave on an ECG tracing?

• A)atrial depolarization
• B)atrial repolarization
• C)ventricular depolarization
• D)ventricular repolarization

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Definitions:

Parasympathetic System

Part of the autonomic nervous system responsible for conserving energy and slowing down the body's response.

Normal Body Functions

The physiological processes and activities carried out by living organisms to maintain life.

Localized Effect

An effect limited to a specific area, region, or part of the body, not spreading from its origin.

Thoracic Nerves

Nerves that are associated with the thorax, contributing to the motor and sensory innervation of the chest, upper back, and abdominal wall muscles.