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What is the hardest substance in the human body?
tooth enamel
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Which organ produces insulin?
Pancreas
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Bones are attached to bones by what?
ligaments
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Where is the smallest bone in the body?
ear
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How much blood is there in an adult person?
5 liters
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What functionless organ is known as "a useless organ"?
appendix
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How many times per minute do we blink?
20
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How many bones are there in an adult human body?
206
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What is the largest internal organ in the human`s body?
liver
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In which part of the body would you find the jaw bone?
head
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Name 5 senses
hearing, sight, taste,touch,smell
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Which organ produces bile?
liver
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What is the largest external organ in the human`s body?
skin
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Humans produce about 40000 liters of which fluid in a life time?
saliva
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Which bones are shaped like a protective cage?
ribs
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Which mineral is the most common in the human`s body?
calcium
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Where is the longest bone in the body located?
leg
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Which organs filter blood?
kidneys
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What organs never stop growing?
ears
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What is the rarest hair colour?
red
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Newborn babies only see black and white. True or False?
True.
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