📖 what

What is the cochlea?

Human BodySenses

Quick Answer

The cochlea is a spiral-shaped structure in the inner ear that converts sound vibrations into nerve signals. It is central to hearing.

The Full Story

The cochlea is filled with fluid and lined with sensory hair cells. When sound causes the fluid to move, the hair cells bend and create electrical signals that are carried by the auditory nerve to the brain. Different parts of the cochlea respond to different sound frequencies, allowing pitch discrimination. Damage to the hair cells can lead to permanent hearing loss because these cells do not regenerate well in humans. The cochlea is one of the body’s most elegant sensory structures.

Key Facts

1.Spiral-shaped inner ear structure
2.Contains hair cells
3.Converts vibration to nerve signals

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Suggested video title for this topic:

"The spiral organ that turns sound into hearing"