What Is the Function of the Auricles

Multiple Choice

What is the function of the auricles?

A) They are the upper chambers of the heart.
B) They supply oxygen-rich blood to the walls of the heart.
C) They are the lower chambers of the heart, which pump blood to the systemic and pulmonary circuits.
D) They form the serous membrane around the heart.
E) They allow the atria to expand while they are filling with blood.