The Human Brain
The Human Brain
100

In 1906, Santiago Ramón y Cajal, a Spanish artist and scientist considered to be the father of modern...

neuroscience 

100

What are the cells that carry messages from the brain to other parts of the body? 

neurons 

200
How much does the average human brain weigh?

3 pounds

200

How fast are the messages carried through the neurons?

150 miles per hour

300
The brain is part of what system?

The central nervous system

300

What are the connections between neurons called?

synapses 

400

What two parts of the body make up the central nervous system?

The brain and the spinal cord. 

400

What process causes the connections between neurons to become stronger?

thinking and learning

500

What is the category of actions that you consciously think about doing? 

voluntary actions

500

What are the actions that your brain does not consciously think about doing?

Involuntary actions

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