Auricle

/ˈɔːɹɪkə‍l/

/ˈɔːɹɪkəl/

[noun]

Auricle

[NOUN]

(anatomy) either of the two cavities of the upper part of the heart that pass blood to the ventricles

synonyms : atrial auricle

atrium

auricula atrii

What is "auricle"?

The auricle refers to the small, muscular pouch-like structure located on the superior surface of each atrium. It is commonly known as the atrial appendage or atrial auricle. The auricles help to increase the capacity of the atria, allowing them to accommodate a larger volume of blood. They play a role in the efficient filling of the ventricles during the cardiac cycle.

the visible cartilaginous part of the external ear

synonyms : ear

pinna

What is "auricle"?

The auricle, also known as the external ear or pinna, is the visible part of the ear that protrudes from the side of the head. It is composed of cartilage and is responsible for collecting sound waves and directing them into the ear canal. The auricle plays a crucial role in the localization and amplification of sound, allowing us to perceive and interpret the auditory information in our environment.

Examples

1. These are called auricles.

2. The different shapes and contours of our auricles at different angles make sounds sound different.

3. So the pinna, or auricle, is the part that you can see, and wiggle, and grab, or festoon with an earring.

4. To do the same thing vertically, we use the flappy external parts of our ears, which are called pinnae or auricles.