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Quiz about Featuring the Amazing Human Body

Featuring the Amazing Human Body Quiz

Some neat trivia facts on the amazing human body. Some of my references are from the National Geographic Society book "Incredible Voyage".

A multiple-choice quiz by Catamount. Estimated time: 5 mins.

Author
Catamount

Time
5 mins

Type
Multiple Choice

Quiz #
189,047

Updated
Dec 03 21

# Qns
10

Difficulty
Difficult

Avg Score
4 / 10

Plays
4837

One at a Time - Single Page - Timed Game

Question 1 of 10

1. Your body creates 25 million new cells in how much time? Hint

Every second

Every hour

Every minute

Every day

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Question 2 of 10

2. Our skin surface is completely replaced four times a year.

True

False

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Question 3 of 10

3. Three million of your red blood cells died as you read this sentence.

True

False

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Question 4 of 10

4. Humans have fewer muscles than a caterpillar.

True

False

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Question 5 of 10

5. Approximately how often does an average person's heart beat in a day? Hint

10,000 times

100,000 times

1,000 times

1,000,000 times

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Question 6 of 10

6. Brad Byers, the "Human Toolbox" holds the world record for sword swallowing (among other strange world records). How many 70cm long swords can he swallow at one time? Hint

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Question 7 of 10

7. About how much blood do your kidneys process in an average day? Hint

30 litres

800 litres

300 litres

180 litres

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Question 8 of 10

8. How much of human feces is made up of intestinal bacteria? Hint

90%

10%-15%

30-50%

none

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Question 9 of 10

9. An adult human has 206 bones. Which body part(s) contain(s) one quarter of your bones? Hint

Skull

Hands

Ear

Pelvis

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Question 10 of 10

10. About how fast do nerve impulses move? Hint

13000m/sec

13m/sec

130m/sec

1300m/sec

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Quiz Answer Key and Fun Facts

1. Your body creates 25 million new cells in how much time?

Answer: Every second

This only sounds amazing until you realize how many cells there are in your body. Every square inch of skin alone, for example, contains over 9 million cells. Altogether the average human body consists of 75 trillion cells, give or take a few.

2. Our skin surface is completely replaced four times a year.

Answer: False

Actually, skin surface is replaced once a month.

3. Three million of your red blood cells died as you read this sentence.

Answer: True

Fortunately your bone marrow produced just as many to replace them. Red blood cells have no nuclei, so they can't repair themselves. Their average lifespan is 80-120 days.

4. Humans have fewer muscles than a caterpillar.

Answer: True

Humans have over 600 muscles. Caterpillars can have up to 4,000.

5. Approximately how often does an average person's heart beat in a day?

Answer: 100,000 times

This adds up to about 2.5 billion beats in your lifetime if you live to around 80 years of age.

6. Brad Byers, the "Human Toolbox" holds the world record for sword swallowing (among other strange world records). How many 70cm long swords can he swallow at one time?

Answer: 10

Not only does he swallow the swords, but he also twists them. Another one of his amazing feats is to lie on a bed of nails with 18 people sitting on him.

7. About how much blood do your kidneys process in an average day?

Answer: 180 litres

Each kidney has about 1 million nephrons: balls of blood vessels, each surrounded by a capsule. Fluids and dissolved substances get filtered through the capsule by blood pressure; blood cells and larger molecules can't pass through and remain in the blood stream.

8. How much of human feces is made up of intestinal bacteria?

Answer: 30-50%

Amazing, isn't it? The average weight of bacteria in your gut is 1 kg. That's why nurses get so insistent about your bowels moving even after you've had surgery and nothing to eat or drink for three days...

9. An adult human has 206 bones. Which body part(s) contain(s) one quarter of your bones?

Answer: Hands

Each hand has 27 bones. Two hands therefore have 54 bones; the entire human body has 206 (in the adult). The feet closely rival the hands with 26 bones each.

10. About how fast do nerve impulses move?

Answer: 130m/sec

Lightning moves at about 150,000km/sec. Think about that next time you read about somebody moving at "lightning speed".

Source: Author Catamount

This quiz was reviewed by FunTrivia editor crisw before going online.
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