What Are Interesting Facts About The Brain And Nervous System?

The brain weighs 3 lbs

The brain is made of nerves and tissue

That if you were to touch something really hot your brain tells your hand to pull away fast!

The total number of neurons in the human body is more than the number of stars in the Milky Way

There are many interesting facts about brain. Although brain is only 2% of our total body weight but it requires 20% of total body oxygen requirement and 20% of total blood pumped by heart. You can fit 30,000 neurons on tip of the pin. Brain produces 25 watts of power. Brain can live for 4-6 hours without oxygen then its cells start to die. Brain has no pain receptors. Our brain has 400 miles of blood vessels. If blood supply to brain is interrupted for 10 seconds, you will lose consciousness. For more details, visit Brain.

The brain can stay alive for 4 to 6 minutes without oxygen after that it begins die.

The spinal cord is a column of nerves. It is about 40cm long and runs inside the backbone from the brain to the base of the back. Nerve cells are the longest cells in the body. Some of the nerve cells that connect the toes with the spinal cord are about 1 metre long.

The average weight of a human brain is 1.4 kg. The average brain is 140 mm wide, 167 mm long and 93 mm high. Men tend to have larger and heavier brains than women. This is just because, usually, men are generally bigger than women - it does not mean there is any difference in intelligence. Some of the most intelligent people in history had smaller than average brains. The weight of the brain also changes with age: 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.

The brain is  a part of the central nervous system

Go onto google and type in interesting facts about the nervous system and click on the first possible opion it has over 10 interesting facts!!!

A worm's nervous system is limited, because it doesn't have a spinal cord