Figure 12-1 Major Internal Landmarks of the Heart
Use Figure 12-1 to identify the labeled part.
-Label R represents the

Name: Figure 12-1 Major Internal Landmarks of the Heart Use Figure 12-1 to identify the labeled part. -Label R represents the
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The opening of the coronary sinus is labeled as R in diagrams of the heart's internal structure, as it is the point where the coronary sinus opens into the right atrium, allowing deoxygenated blood from the myocardium to enter the heart.