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Inner ear spiral chamber
Age 12 · Biology
The inner ear contains a spiral chamber filled with fluid. When vibrations make ripples in the fluid, tiny hair-like cells bend and send nerve signals to the brain.
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In the picture
- Spiral chamber: a snail-shaped space filled with fluid
- Fluid ripples: waves that move through the fluid
- Hair-like cells: tiny cells that bend when ripples pass
- Nerve fibres: a bundle that carries signals away from the cells
Examples
- Listening to a friend call your name
- Hearing the bass thump at a concert
Key takeaways
- The inner ear turns sound vibrations into nerve signals.
- Hair-like cells are tiny sensors that detect movement in the fluid.
Quiz: Inner ear spiral chamber (Age 12)
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According to the card, what does the inner ear do with sound vibrations?
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What makes the hair-like cells in the spiral chamber bend?
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Which part carries signals away from the hair-like cells?
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