Ossicle

/ˈɒsɪkə‍l/

/ˈɑːsɪkəl/

[noun]

Ossicle

[NOUN]

a small bone found in the middle ear that helps transmit sound vibrations and facilitate hearing

synonyms : bonelet

ossiculum

What is an "ossicle"?

An ossicle is a tiny bone located in the middle ear. There are three ossicles in each ear: the malleus (hammer), incus (anvil), and stapes (stirrup). These delicate bones work together to transmit sound vibrations from the eardrum to the inner ear. The ossicles amplify and refine sound waves, allowing for efficient transmission of sound from the air-filled middle ear to the fluid-filled inner ear. They play a critical role in the process of hearing, converting sound waves into electrical signals that can be interpreted by the brain. The ossicles' precise structure and articulation enable the auditory system to detect and process sound, contributing to our ability to perceive and understand the world of sound around us.

Examples

1. The ossicles, the tympanum, reach their full functionality around the fifth week of pregnancy.

2. Ossicles first show up in a turtle from Saudi Arabia around 56 million years ago called Arabemys.

3. Like Arabemys and later skin-shells, it has hundreds of ossicles in its shell.

4. The ear drum, the auditory ossicles is the smallest bone in your body.