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Do you have the same neck vertebrae as a giraffe?
How much salt does the average human body contain? (in grams)
Around 2650 grams.
True or false: Like your fingerprints, your tongue print is also unique.
True.
How many teeth are in the mouth of an average adult?
32.
What percentage of your body is water?
What is the rarest blood type in humans?
AB negative. Less than one percent of the population has this blood type.
True or false: Your tongue has different areas that are more sensitive to different flavors.
False. This is a common myth taught in primary schools and it the result of a mistranslated scientific paper, from German to English.
On average, how many hairs are there on a person´s head?
Roughly 100 000.
What is the human body´s biggest organ?
skin
How many kilograms of skin do you shed in a lifetime?
Roughly 22kg.
In terms of attributed humant deaths which are more dangerous: snakes, bees, sharks or house flies?
House flies. They spread disease-causing bacteria.
Why does eyesight change as you get older?
The eye’s lens continues to grow throughout one’s life. It becomes thicker and less transparent.
How long is the small intestine in an adult?
7 meters.
What is the longest bone in the human body?
Femur.
How much saliva does your mouth make each day?
1 liter.
What is the hardest substance in the human body?
Tooth enamel.
What´s the lifespan of a human red blood cells?
Around 120 days.
Which is the strongest muscle in the human body?
Jaw.
Some people are super flexible, and twist their bodies into funny shapes to entertain others. What do you call a person like that?
Contortionist. They often show-off by squeezing themselves into small spaces, like boxes or cupboards.
How much air can the average person´s lungs hold? (in liters)
6L. However, even when you take your deepest breath in or out, you only breathe about 4.8L of air. The remaining 1.2L is air that just chills in your lungs, and mixes with your next breath.
Where are the three smallest bones in the human body?
In the middle ear. Collectively called ossicles, the 3 bones are the malleus (hammer), incus (anvil) & stapes (stirrup).
What does bile do in your body?
Emulsifies fats in the small intestine.
How many muscles does it take to smile?
17, and it takes 43 to frown. So let's all be lazy and smile.
Where would you find your pinna?
It is your outer ear, the bit you see made out of cartilage.
How many bones are there in the human feet?
52.