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!

Are biting mosquitos females or males?

In Body Trivia
A
Are biting mosquitos females or males?
View Answer
Mosquitos that bite us are the female mosquitos.
Female mosquitos need the iron from our blood to hatch their eggs. Itching after a mosquito bite happens because their saliva contains an anticoagulant to which our immune system reacts. This anticoagulant prevents your blood from clotting at the site of the puncture.
Take the Quiz

How does an iris scanner work?

In Body Trivia
H
How does an iris scanner work?
View Answer
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.
Take the Quiz

Why our nails turn blue during winter?

In Body Trivia
W
Why our nails turn blue during winter?
View Answer
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.
Take the Quiz

Why do mosquitos bite some people more often?

In Body Trivia
W
Why do mosquitos bite some people more often?
View Answer
People who are exhaling more carbon dioxide, alcohol consumers, those who sweat more or having a blood group O, are frequently attacked.
People who eat a lot of milk products and then exercise have lactic acid deposited on skin, they are also approached by mosquitos.
Take the Quiz

Which part takes up 80% of the brain?

In Body Trivia
W
Body Trivia part takes 80brain
View Answer
Cerebrum.
The brain is contained and protected by skull bones of the head. The cerebrum is the most significant part of the human brain. It is divided into two hemispheres of the brain. The cerebral cortex is the outer layer of a gray matter that covers the core of a white matter.
Take the Quiz

What is tunnel vision?

In Body Trivia
W
What is tunnel vision?
View Answer
Tunnel vision is a medical condition in which a person loses peripheral vision and retains only central vision, which results in a tunnel-like vision.
It may occur due to glaucoma (in which fluid in eye builds up and creates pressure on the nerves causing damage. Another reason can be a genetic disease called retinitis pigmentosa that causes damage to the retina.
Take the Quiz

Why coffee helps us stay awake?

In Body Trivia
W
Why coffee helps us stay awake?
View Answer
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.
Take the Quiz