Question:
The transverse groove that separates the Atria and Ventricles is
The transverse groove that separates the Atria and Ventricles is
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The coronary sulcus marks the external boundary between atria and ventricles. Internal septa separate chambers within the heart.
Updated On: Jun 19, 2026
- Auricular appendix
- Coronary Sulcus
- Interauricular septum
- Interventricular septum
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The Correct Option is B
Solution and Explanation
Step 1: Understanding heart anatomy.
The heart has four chambers: two atria and two ventricles. The separation between atria and ventricles is marked externally by a transverse groove.
Step 2: Identify the groove.
This groove is known as the coronary sulcus (atrioventricular groove) and it encircles the heart, separating atria above from ventricles below.
Step 3: Importance of coronary sulcus.
The coronary sulcus contains major blood vessels like the coronary arteries and coronary sinus which supply blood to the heart muscle itself.
Step 4: Eliminate other options.
- Auricular appendix: Small muscular pouch in atria, does not separate chambers.
- Interauricular septum: Separates right and left atria internally.
- Interventricular septum: Separates ventricles internally.
Step 5: Conclusion.
Hence, the transverse groove separating atria and ventricles is the Coronary Sulcus.
The heart has four chambers: two atria and two ventricles. The separation between atria and ventricles is marked externally by a transverse groove.
Step 2: Identify the groove.
This groove is known as the coronary sulcus (atrioventricular groove) and it encircles the heart, separating atria above from ventricles below.
Step 3: Importance of coronary sulcus.
The coronary sulcus contains major blood vessels like the coronary arteries and coronary sinus which supply blood to the heart muscle itself.
Step 4: Eliminate other options.
- Auricular appendix: Small muscular pouch in atria, does not separate chambers.
- Interauricular septum: Separates right and left atria internally.
- Interventricular septum: Separates ventricles internally.
Step 5: Conclusion.
Hence, the transverse groove separating atria and ventricles is the Coronary Sulcus.
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