The great body trivia quiz.

You've been waiting for it, dreaming about it, and now it's here: the great Body Trivia Quiz! So grab a pen and get ready to stretch those brains. It's time for a major mental sweat.

1. While we're speaking of sweat , how many sweat glands does the average person have? a. 2,000 b. 2 million c. 164 billion d. 12

2. There is enough electrical power in an average brain to a. light a 10-watt bulb b. light a 200-watt bulb c. start a car d. light New York City.

3. The most active muscles in the body are a. heart b. thumb c. eye d. tongue.

4. The average eyelash lives a. 150 days b. 2 years c. 45 days d. 5 years

5. The average head has a.500,000 hairs b. 100,000 hairs c. 50,000 hairs d. 1.2 million hairs.

6. Through a stethoscope the heart sounds like a. lub Dub, lub Dub b. lub Dub de Dub c. Duba Luba d. Boom bang a wanga

7. What is the number of scents that the average person can detect? a. 100 b. 10,000 c. 10 d. 1,000

8. The brain is about a. 85% water b. 30 % water c. 60 % water d. 25% water and 25 % ginger ale.

9. The smallest bone in the body is in the a. little toe b. ear c. nose d. eye.

10. Your mouth produces enough saliva each day to fill a. pint milk container b. a half-gallon milk jug c. a gallon milk jug d. a 10-gallon fish tank.

11. How many nerve cells are there in the body ? a. 12,000 b. 12 million c. 12 billion d. 12 zillion.

12. The three kinds of memory that we all have are a. past, present, future b. short-term, medium-term, long-term c. short-range, long-range, longer range d. nearsighted, farsighted, middle-sighted.

13. The average person eats about a. 200 pounds of food a year b. 500 pounds of food a year c. 2,000 pounds of food a year d. 5,000 pounds of food a year.

14. most of the bones in the body are concentrated in the a. head and neck b. back and legs c. hands and feet d. arms and shoulders.

15. The total length of all the blood vessels in the body is a. 60 miles b. 60,000 miles c. 45,000 feet d. 1,000 centimeters.

16. Your body makes new taste buds about every a. 3 days b. 24 hours c. 2 months d. time you eat hot pizzas

17. Kissing is a combination of what two skin sensors? a. pain and pressure b. pressure and heat c. cold and pressure d. heat and pain.

18. How many times does the average heart beat in a lifetime? a. 25 million times b. 2.5 billion times c. 25 billion times d. 72 times.

19. The strongest muscle in your body is in your a. arm b. diaphragm c. jaw d. leg.

20. Brain cells last about a.6 months b. 3 years c. 25 years d. a lifetime.

Let's see how you did. No changing answers, please.

1. b. 164 billion has something to do with galaxies. If you had 12 million, sweat would probably be flowing like the Mississippi River.

2. a. All of you who chose c and were trying to figure out some way of attaching jumper cables to your earlobes, forget it.

3. c. Actually, they move about 100,000 times a day. It's not d in spite of what your mother says.

4. a. The old ones usually fall off and annoy you for a few minutes; the new ones keep you from looking too weird.

5. b. Some fathers, of course, have been known to have only 10 or 12. Thick hair, by the way, isn't more hair, just thicker strands.

6. a. You can try this yourself. If you hear any of the other sounds, see your doctor immediately.

7. b. No, there aren't the four primary scents like dentist offices, dirty socks, baked bread, and cabbage.

8. a. When they say your brain is like sponge, they mean it.

9. b. No bones in the eye or nose.

10. b. Take our word on this. Please don't try this at home your parents won't appreciate it.

11.c. If you know how to write the number, give yourself an extra point. If you picked d, take off a point.

12. b. Short-term memory lasts a few seconds; it's a fleeting impression like your mother telling you to clean your room or the phone number you only need once. Medium-term memories last several minutes or hours, while long-term years.

13. c. About 3 pounds a day. Of course if you are on the football team, it can be a lot different.

14. c. About half of all your bones live there.

15. b. That's enough to stretch back and forth across the country 20 times.

16. a. Hot pizza or not.

17. b. Enough said.

18. b. If you picked d, you're remembering something else. That's the average number of beats per minute.

19. c. It's called the masseter, and you have two on each side of your mouth for biting.

20. c.