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Your Brain, Eye and Ear

Across
The brain has 100 thousand miles of _____
There are no pain ___ in the brain
Motor neurons can ___ at about 200 miles per hour
Sensory neurons send ___ that travel about 150 miles per hour
Takes electrical signals to the brain to hear
Also called the incus
Transmits information from the retina to the brain.
Sound waves enter here
The brain weighs 3 ____
Light enters the eye through the___
Also called the hammer
Down
Controls the amount of light entering the eye
The brain generates ____
Your brain makes up about 2% of your body ___
The brain is more powerful and complex than even a ___
Sound waves move through the___
The brain contains 100 billion ____
The white part of the eye.
Your brain uses about 20% of your ___
The electricity from the brain could power a ___
What the brain feels like
The back of your brain is where ___ is processed
Sound waves cause the ___ to vibrate
Each part of the brain has a ___
Your brain stops making connections once you become an adult