OverviewThe brain is the body’s most complex
organ.
Brainiac-Facts
- The adult human brain weighs
approximately 1.4 kg (3 pounds) and contains about 100 billion neurons (nerve cells) and trillions of "support
cells" called glia.
- The brain supports more than 100-500 trillion synapses
- The spinal
cord is about 43 to 45 cm long (17-18 inches) in adult humans and weighs about
35-40 grams (1.2-1.4 ounces).
- The backbone that houses and protects
the spinal cord, is much longer than the spinal cord—about 70 cm (27 inches)
long.
- The brain is capable of between 1015 and 1019 computations per second (CPS). By comparison a modern super computer is capable of 109 CPS.
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