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Ten Amazing Facts About The Nervous System

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by

Maria Barrera

on 20 August 2013

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Transcript of Ten Amazing Facts About The Nervous System

Ten Amazing Facts About The Nervous System
Did you know?
1. The male brain weighs on average, about 100 grams more than the average female brain.
2. Men have approximately 6.5 times more grey matter in the brain compared to women. However, women have approximately 10 times more white matter than men.
Growing Up
Speed
4. The nervous system is able to transmit impulses at the speed of
100 meters
per second.
By: Maria Barrera, MacGuire Dellinger, and Jason Wise
The Nervous System
The Brain Cells
5. Only 4% of the brain's cells work while the remaining cells are kept in reserve.
600 Miles
7. If all of the neurons in our body were lined up, it would be about
600 miles long.
Milky Way and Nerve Cells
8. There are more nerve cells in the human brain than stars in the entire Milky Way.
6. Blind people do dream. Whether or not they dream in pictures depends on whether they were born blind or lost their vision later. Instead of visual sensations, blind individuals' dreams typically include information from the other senses such as sound, touch, taste, hearing and smell.
3. An adults brain is
3
times as heavy as a newborn baby's brain but, after the age of 20, the brain loses
1g
in weight every year.
Dreams?
8. Some people(12%) dream in black and white. Some suggest it has to do with childhood exposure to a black and white television. Those who dream in black and white are typically over 55.
Lots of Neurons
9. There are a 100 billion neurons in the brain
alone.
Blind Dreams ?
Brain Size
Full transcript