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The brain is an organ that serves as the center of the nervous system in all vertebrate and most invertebrate animals. The brain is located in the head, usually close to the sensory organs for senses such as vision. The brain is the most complex organ in a vertebrate's body. In a human, the cerebral cortex contains approximately 15–33 billion neurons, each connected by synapses to several thousand other neurons. These neurons communicate with one another by means of long protoplasmic fibers called axons, which carry trains of signal pulses called action potentials to distant parts of the brain or body targeting specific recipient cells.

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Doesn't hurt to gain a few more IQ points.

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Contributed by Alex Elizabeth Morales

Try and do it as fast as you can!

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I'll stick with my psychology degree!

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Studies Show!

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The recent trailer from the movie, Lucy, resurfaces the age-long myth that humans are estimated to use only 10% of our brains. It's crazy that we have researchers who are well on the way to mapping out their way to mapping out the entire brain (if they haven't already), yet completely inaccurate myths like this one are still widely believed. Check out more of the most popular legends about our brains here: How many did you think were true?

Contributed by Meghan Hill

Accurate descriptions of the function of each part of the brain as well as the way those functions are carried out when you do homework.

Contributed by Le Hoang

Is it possible to do anything without your brain?

Contributed by Sean Collazo

About the brain

Contributed by Jennifer Davis

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