Question

process when auricle and ventrical expand

Answer 1

An auricle is the feature of anatomy of the heart.There are two auricles in the heart. Each one is attached to the anterior surface of the outer-walls of the atria (i.e.left and right atria). They look like wrinkled pouch like structures. Their purpose is to increase the capacity of the atrium and also increase the volume of blood that is able to contain.

Auricle is also called atrial appendage. It is the ear like conical muscular pouch that arise from each atrium.

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Answer 2

It is called cardiac cycle

1st - auricular cystole and ventricular diapose

2nd- ventricular cystole and auricular diapose

3rd- joint dispose of both

This all occur in cyclic manner called cardiac cycle