Monday, 11 February 2013

The sense of hearing.

We use our ears to hear things.
Some sounds are nice,such as music, and others are loud and noisy; for instance, someone shouting .
The ear: sounds enter the outer ear and travel to the eardrum along the ear canal.

Three small bones, the hammer, anvil and stirrup, make sounds louder.

The sound goes to the brain through the auditory nerve.

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