CategoryBody Trivia

Human Body and Anatomy Trivia Questions and Answers

Human Body and Anatomy Trivia Questions and Answers

Do you think you know everything about the human body? Do you know about the body’s essential organs, brain functions, or digestive processes? Learn more about the anatomy of the human body as well as parts such as the bones, eyes, muscles, and heart. Challenge yourself or play with friends with the best collection of the fascinating and amazing medical facts and trivia.

Ready to test your knowledge? Click on the questions below to reveal the answer and some related information. Keep clicking to reveal all the answers. Enjoy your quiz!

What is the most important finger of your hand?

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What is the most important finger of your hand?
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The little finger.
Of all your fingers, you might think your pinky is the most useless. But your little finger is particularly important in a firm grip, and hand surgeons agree if you’re going to lose one, the index finger is the best one to lose as by losing your little finger, your grip strength is reduced by 50%.
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Why are boys taller than girls?

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Why are boys taller than girls?
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Girls have shorter height as during puberty estrogen synthesis is higher than to boys.
Estrogen promotes closing of epiphyseal plates, which are structures present on the terminal ends of bones, composed of cartilage. These promote the growth of bone.
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What does energy drink contain?

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What does energy drink contain?
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Energy rinks main constituents are sugar, water and caffeine and taurine.
These ingredients help replenish lost fluids and stimulate energy release. They also contain ginseng, which reduces stress, bilboa seeds which enhance memory and the amino acid Taurine, which increases heart and skeletal muscle contractions.
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Why coffee helps us stay awake?

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Why coffee helps us stay awake?
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Caffeine binds to the adenosine receptor, but because to a nerve cell, caffeine looks like adenosine it doesn't slow down the cell's activity as adenosine would.
Coffee helps us stay awake as it binds to receptors for adenosine in our brain. Instead of slowing down because of the adenosine’s effect, the nerve cells speed up.
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What was believed the relationship between sex and scarce eyelashes?

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What was believed the relationship between sex and scarce eyelashes?
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The Romans believed eyelashes fell out of excessive sex.
According to Pliny: “There are eyelashes on both sides of human eyes; women’s [eyelashes] are actually commonly dyed with cosmetics: they strive for beauty to such an extent that they even color their eyes. … It is said, not unjustly, that the [eyelashes] fall off in the case of those people who have a great deal of sexual intercourse.”
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Why our nails turn blue during winter?

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Why our nails turn blue during winter?
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Nails turn blue in cold weather because our blood vessels constrict in response to a low temperature to minimize heat loss.
This results in less supply of RBC (which carry oxygen) and our blood appears blue. It is more apparent in nails due to their transparency.
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How does an iris scanner work?

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How does an iris scanner work?
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Iris scanner works on the principle of uniqueness of everyone’s iris. Iris are unique due to the amount of melanin content in them.
Crypts and ridges in iris are all unique and very little affected by genes. Iris scanner functions by sending a beam of infrared light that bounces back to it with certain frequency which is then decoded by a processing unit.
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