The Most Amazing Structure on Earth

1.Adult humans have __________connections between neurons

• 100 billion

• 700 billion

• 125 million

2.What is the main idea of the third paragraph?

• The cerebral cortex ,which has four parts, makes us intelligent

• People used to think that the brain was not important

• The cerebral cortex has three parts

3.The top of the cerebral cortex

• processes things that people touch

• processes images from our eyes

• processes sounds that people hear

4. As used in this reading ,the words "useless stuffing" refer to_____________

• unimportant lobes on the surface of the cerebral cortex

• unimportant material

• unused or neurons inside the brain

5. People who injure the side lobe of the cerebral cortex _____________.

• are usually not very intelligent

• may not be able to feel happiness or sadness as well as other people

• may have trouble remembering things

6.What is the main idea of the last paragraph?

• The brain has 100 million cells call neurons

• The brain´s neurons send and receive information throughout the body faster than any computer

• People are born with most of the neurons they have when they become adults

7.The cerebral cortex consists of _____________

• Four parts called neurons

• Four parts called lobes

• useless stuffing

8.A mouse brain is ________________

• about twice as strong as the world's best computers

• about as strong as the world's best computers

• about half strong as the world's best computer

9.The brain´s neurons use the spinal cord like a__________

• highway

• map which shows the locations to different parts of the body

• pathway