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

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?
- Finger nails
- Toenails
The skin is the largest organ in the body. How big is it?
- 8 square feet - about the size of four large pizza boxes
- 20 square feet - slightly smaller than the average door of a room
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...
- Head of an iceberg lettuce - about 1 and a half pounds
- Cantaloupe - about 3 pounds
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...
- One small nail
- A pair of scissors
The human body is about 60 percent water. An average person drinks how much water in a life time?
- About 16,000 gallons
- About 38,000 gallons
What part of the day is your eyesight the sharpest?
- In the morning
- In the middle of the day
Beards are the fastest growing hair. If the average man never cuts his beard, how much could it grow during his lifetime?
- About 30 feet
- About 55 feet
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...
- Twice as often as men
- Half as often as men
- Same amount as men
What is the hardest part of the body?
- The enamel in your teeth
- The Skull
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?
- About 3,500 miles. Stretched out they'd go from New York City to London, England.
- More than 3,500 miles. Stretched out, they'd circle the Earth's Equator nearly 4 times.
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?
- 250 miles per hour
- 250 miles per second
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?
- One minute
- Six hours

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