How many muscles do you use to smile?
10
17
22
How many times does a human heart beat per day (average)?
1,000,000
100,000
10,000
How many bones does an adult human body have?
206
306
106
Which is the largest organ in the human body?
Liver
Heart
Skin
Which body part has no blood supply and takes oxygen from the air?
Hair
Eyes
Skin
Which part of your body has the most bones?
Hand
Back
Foot
Where are the smallest bones in the human body?
In the ear
In the hand
In the nose
Which body part can heal itself completely?
Nail
Hair
Liver
Which body part has unique prints, like fingerprints?
Tongue
Ears
Nose
What percentage of the human body is water?
60%
30%
80%