Ridges of Heart Muscle Located Within the Right Atrium and the Auricles

question 13

Multiple Choice

Ridges of heart muscle located within the right atrium and the auricles are called the

• A)pectinate muscles.
• B)interatrial sulci.
• C)atrioventricular orifices.
• D)trabeculae carneae.
• E)papillary muscles.

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