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Human Body Fun Facts
Surprising true facts about the human body.
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58 cards
- How many bones does an adult have?Question206
- Which is the biggest bone in the body?QuestionThe femur (thigh bone)
- Which is the smallest bone?QuestionThe stapes, in the ear
- How many teeth do most adults have?Question32, including wisdom teeth
- How many baby teeth do children have?Question20
- What organ pumps blood?QuestionThe heart
- What are the lungs for?QuestionBreathing in oxygen and out carbon dioxide
- What is the biggest organ?QuestionThe skin
- Which organ is used for thinking?QuestionThe brain
- How many chambers does the heart have?QuestionFour
- What color is blood inside the body?QuestionRed
- What do red blood cells carry?QuestionOxygen
- What do white blood cells do?QuestionFight germs
- What is the job of the stomach?QuestionTo break down food with acid and churning
- What does the liver do?QuestionCleans the blood and helps digest fat
- What do kidneys do?QuestionFilter waste from blood to make urine
- What organ protects your brain?QuestionThe skull
- What protects your heart and lungs?QuestionThe rib cage
- What are muscles for?QuestionMoving the body
- Which muscle never gets a rest?QuestionThe heart muscle
- How many senses do we usually count?QuestionFive: sight, hearing, smell, taste and touch
- What part of the eye lets in light?QuestionThe pupil
- What part of the eye is colored?QuestionThe iris
- What do ears help us do?QuestionHear and keep balance
- What are taste buds?QuestionTiny sensors on the tongue that detect tastes
- What are the basic tastes?QuestionSweet, salty, sour, bitter and umami
- What are fingerprints?QuestionUnique patterns on fingertips
- What does the skeleton do?QuestionGives shape, protects organs, and helps movement
- How many ribs do most people have?Question24, in 12 pairs
- What is the spine?QuestionA column of bones (vertebrae) that protects the spinal cord
- What are joints?QuestionPlaces where two bones meet
- What is the windpipe called?QuestionThe trachea
- What tube carries food to your stomach?QuestionThe esophagus
- How long is the small intestine?QuestionAbout 20 feet (6 meters) in adults
- What happens when you sneeze?QuestionYour body pushes out dust or germs from your nose
- Why do we get hiccups?QuestionThe diaphragm twitches suddenly
- Why do we sweat?QuestionTo cool the body down
- How much of your body is water?QuestionAbout 60 percent in adults
- How often does your heart beat?QuestionAbout 60 to 100 times a minute for adults at rest
- How many hours of sleep do kids need?QuestionAbout 9 to 12 hours, depending on age
- What does sleep do?QuestionLets your body and brain rest and grow
- What are vitamins for?QuestionHelping the body work and grow
- What is calcium good for?QuestionStrong bones and teeth
- What is the nervous system?QuestionThe brain, spinal cord and nerves that send messages
- What is DNA?QuestionThe instruction code inside cells
- What is a cell?QuestionThe smallest building block of living things
- How many muscles help you smile?QuestionIt takes several muscles in your face
- What is the funny bone?QuestionA spot on your elbow where a nerve runs near the surface
- What is goosebumps?QuestionTiny muscles at the base of hairs tighten
- What does the cerebellum control?QuestionBalance and coordination
- What are tonsils?QuestionTissue at the back of the throat that helps fight germs
- What is an appendix?QuestionA small pouch attached to the large intestine
- What do eyelashes do?QuestionHelp keep dust out of your eyes
- What do nails protect?QuestionThe tips of your fingers and toes
- What is the pulse?QuestionThe beat of your heart felt in your wrist or neck
- What is the diaphragm?QuestionA muscle under the lungs that helps you breathe
- What is the largest muscle?QuestionThe gluteus maximus in the bottom
- What helps wash hands clean?QuestionSoap and water for at least 20 seconds
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