Multiple choice

Which of the following statements about heart is incorrect?

  1. Heart possesses upper small sized auricles or atrium and lower large sized ventricles.

  2. The auricles are demarcated externally from ventricles by the coronary sulcus.

  3. Auricles are the thin walled chambers and are called the receiving chambers.

  4. The wall of left ventricle is thicker than that of light ventricle.

  5. The walls of atria are thinner than that of ventricles.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The auricles are demarcated externally from the ventricles by an irregular groove called coronary sulcus.

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