How Well Do You Know Your Own Body?

The human body is an amazing piece of machinery designed to withstand almost all the traumas that life throws at it - with a few weird little quirks. For example, do you know that the rate at which your hair grows doubles during an airplane flight, or that is impossible to sneeze with your eyes open? How much do you know about the human body? Test your knowledge in our quiz.

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START THE QUIZ
1
What is the scientific name for red blood cells?
2
What percent of the human body is water?
3
How much salt is there in the average human body?
4
What is the most abundant element in the human body?
5
The human body consists of how many organ systems?
6
Apart from fingerprints, what another part of the human body is unique?
7
What is the total length of all the blood vessels in the human body?
8
What are the fastest muscles in the human body?
9
What is the only part of our bodies that grow faster than hair?
10
How many bones are there in the human body?
11
How long do our eyelashes last?
12
How many organs are there in the human body?
13
How much saliva does the average person make each day?
14
What is the largest organ in the human body?
15
How fast does a sneeze travel?
16
How much skin does the average person shed in a year?
17
How many types of permanent teeth are there in an adult's mouth?
18
How many bacteria live on human skin?
19
What human bones are almost as hard as concrete?
20
What is the only part of the body that has no blood supply?
21
The word muscle comes from Latin term meaning ____________.
22
What is the longest nerve in the human body?
23
The ears are organs that provide two main functions — hearing and __________.
24
How many smells can the human nose detect?
25
How many basic tastes can humans sense?
26
What is the largest internal organ in the human body?
27
How much blood is in the human body?
28
How many bones are there in the human skull?
29
How much gold is found in the average human body?
30
What metal is present in human blood?
31
What is the speed of the fastest nerve impulses?
32
What is the memory capacity of the human brain?
33
How many facial muscles are involved in speaking?
34
How many bones do babies have at birth?
35
How many teeth does the average person have?

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