The Human Body Quiz

This quiz is a general knowledge quiz to test the mind! I hope you know things about your body because if you don't, you're going to struggle a bit. I gained all of this knowledge by reading books...

...and I want to give all of that knowledge to you! So, in advance I give you good luck and I hope you like it! This quiz can be used for educational purposes and it would be obliging if it was shared to schools throughout the world.

Created by: ShadowClawVIP
  1. Nails on the fingers and toes are both made of keratin, the same substance the hair is made of. But the are differences between finger nails and toenails. If you are right handed, the nails on your right hand grow faster than those on your left. It's the other way around if you are left-handed. However, toenails grow at the same rate on both feet. Also, finger nails and toenails grow at different rates. Which grow faster?
  2. The skin is the largest organ in the body. How big is it?
  3. The brain of a medium-size dog weighs about three ounces - about as much as a lemon. A grasshopper's brain is one-thousandth of an ounce - about as heavy as a grain of rice. The adult human brain weighs about as much as a...
  4. Iron in the body is found in red blood cells and also stored in different organs. Altogether there's enough iron in the human body to make...
  5. The human body is about 60 percent water. An average person drinks how much water in a life time?
  6. What part of the day is your eyesight the sharpest?
  7. Beards are the fastest growing hair. If the average man never cuts his beard, how much could it grow during his lifetime?
  8. People blink to keep the eyeballs moist and clean with tears. People also blink if they are tired or to keep out bright lights. What we feel or think can also affect how much we blink. During the day the average woman blinks...
  9. What is the hardest part of the body?
  10. About six quarters of blood are carried through the body by blood vessels. The vessels range in size from about an inch wide to capillaries, too small to see with the naked eye. How many miles of blood vessels are there in the body?
  11. The 100 billion cells of the brain are called neurons. Neurons connect to each other by sending electrochemical signals. How fast do those signals move from neuron to neuron?
  12. The heart beats 100,000 times a day, sending blood through the body. How long does it take a single blood cell to travel completely through the body once?

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