What is left auricles

Part of the left heart

It is the third chamber of our heart.The oxidant blood from lung is directly go to the left auricle

Correct...?.?.?

Left upper chamber of the heart

The left auricle, also known as the left atrial appendage (LAA), is a flap of heart wall on the anterior surface of the left atrium of the heart. Often confused with the left atrium, it is one of the most prominent structural features of the left atrium and plays an important role in the pumping of blood within the heart.

A human heart has 4 chambers_left and right auricle,left and right ventricle