Which structure is not considered to be found in the right atrium?

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Study for the EPU Electrophysiology Exam with comprehensive questions and explanations. Enhance your knowledge with flashcards and a variety of question formats to ensure you are prepared to excel!

Multiple Choice

Which structure is not considered to be found in the right atrium?

Explanation:
Recognize which structures belong to the right atrium. The right atrium has a rough anterior wall with pectinate muscles, divided from the smooth posterior wall by the crista terminalis, and it receives blood through the openings of the superior vena cava, inferior vena cava, and coronary sinus. The Coumadin ridge, by contrast, is a feature described in the left atrium, typically as a muscular ridge near the left atrial appendage and its adjacent pulmonary veins. Since this ridge is a left atrial structure, it is not found in the right atrium. The other three features listed are characteristic of the right atrium.

Recognize which structures belong to the right atrium. The right atrium has a rough anterior wall with pectinate muscles, divided from the smooth posterior wall by the crista terminalis, and it receives blood through the openings of the superior vena cava, inferior vena cava, and coronary sinus. The Coumadin ridge, by contrast, is a feature described in the left atrium, typically as a muscular ridge near the left atrial appendage and its adjacent pulmonary veins. Since this ridge is a left atrial structure, it is not found in the right atrium. The other three features listed are characteristic of the right atrium.

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