The Human Ear
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50 free The Human Ear trivia questions with answers — science & nature quiz, new questions added Oct 2026.
The ear does two jobs at once. It turns faint ripples in the air into the voices and music you recognise, and it tells your brain which way is up, all with parts small enough to sit on a fingertip. This quiz works from the outside in: the visible outer ear and its canal, the tiny bones and drum of the middle ear, and the fluid-filled chambers of the inner ear where hearing and balance begin. Along the way it covers ear infections and why children get so many, the causes of hearing loss and dizziness, how doctors test hearing, and a few famous ears from art, sport and history. It suits anatomy and biology students revising ear structure and function, nursing and audiology learners, and anyone who likes knowing how their own body works. Every answer comes with a short explanation.
30 of 50 questions with answers and explanations. Play the quiz
Q 01Which bone of the middle ear is the smallest and lightest bone in the entire human body?
Stapes
The stapes takes its name from the Medieval Latin for stirrup, which it resembles. Classical Latin had no such word, since stirrups did not exist in the ancient world.
Q 02The cochlea, the inner ear's spiral hearing chamber, is named after the Greek word for which animal?
Snail
Snail is the meaning of the Greek kokhlias, a nod to the coiled shell shape. Monotremes such as the platypus are the exception among mammals, with a cochlea that is not coiled.
Q 03Which Dutch painter took a razor to his own left ear after a row with Paul Gauguin?
Vincent van Gogh
Vincent van Gogh wrapped the ear in paper and delivered it to a woman at a brothel. He later painted himself wearing the bandages.
Q 04Which boxer was disqualified from a 1997 title fight for biting off part of Evander Holyfield's ear?
Mike Tyson
Mike Tyson bit both of Holyfield's ears in the third round in Las Vegas. The bout has been known ever since as The Bite Fight.
Q 05The decibel, the unit of sound level, honours which inventor whose mother and wife were both deaf?
Alexander Graham Bell
Alexander Graham Bell gave his name to the bel, and a decibel is one tenth of that. His mother's deafness is what first led him to study acoustics.
Q 06The lumpy, swollen ear common among wrestlers and rugby players is named after which vegetable?
Cauliflower
Cauliflower ear forms when a blow leaves a blood clot under the skin of the outer ear, which then heals into lumps. Rugby players wear scrum caps to prevent it.
Q 07Which process explains why your own voice sounds deeper to you than it does on a recording?
Bone conduction
Bone conduction sends your voice through the skull to the inner ear as you speak. The skull carries low frequencies better than air does, so a recording sounds thinner than you expect.
Q 08Which travel ailment strikes when the inner ear and the eyes send the brain conflicting signals?
Motion sickness
Motion sickness comes from that mismatch between the senses. It is why reading a book in a moving car can bring it on and watching the horizon helps.
Q 09Earwax, a protective substance that comes in wet and dry types, goes by which medical name?
Cerumen
Cerumen type is set by your genes: the wet kind is dominant and the dry kind recessive. Dry, flaky wax is the more common type among many East Asians.
Q 10Which passage, shorter and more horizontal in children, links the middle ear to the upper throat?
Eustachian tube
Eustachian tube shape is why young children get so many ear infections: a short, level passage lets germs in easily and drains fluid poorly. Swallowing briefly opens it.
Q 11Which condition, named from the Latin for 'to ring', means hearing sounds with no outside source?
Tinnitus
Tinnitus is often described as ringing, but it can also sound like clicking, buzzing, hissing or roaring. One theory is that the brain turns up its own volume on frequencies it can no longer hear.
Q 12Which sensation of spinning while standing still is most often traced to an inner ear problem?
Vertigo
Vertigo is the most common type of dizziness. Its leading cause is loose crystal debris drifting inside the inner ear, which creates a false sense of movement whenever the head shifts.
Q 13Which instrument, fitted with a light and magnifying lens, lets a doctor look inside the ear canal?
Otoscope
Q 21Human hearing is commonly said to span 20 to 20,000 of which unit of frequency?
Hertz
Hertz count vibrations per second, and few people keep the full span for long. The range usually starts to shrink from around the age of eight, with the highest notes going first.
Q 22Which sound receptors of the cochlea can never grow back in humans once loud noise destroys them?
Hair cells
Hair cells number only about 15,000 in each cochlea at birth. Birds and fish can regrow theirs, which is why researchers study them in the search for a hearing-loss cure.
Q 23The inner ear's network of fluid-filled bony passages is known to anatomists by which name?
Labyrinth
Labyrinth is the anatomists' term, and its bony shape varies enough between species that fossil hunters use it to tell Neanderthals from modern humans.
Otoscope views take in the eardrum as well as the canal. Since the middle ear is hidden behind it, the look of the eardrum is how a doctor judges what is going on inside.
Q 14Which sporty nickname is given to inflammation of the ear canal that trapped water often sets off?
Swimmer's ear
Swimmer's ear does not need a pool: water left behind after a shower can start it, and so can scratching the canal with a cotton swab.
Q 15A change in what makes your ears pop as an aeroplane climbs or comes in to land?
Air pressure
Air pressure falls as a plane climbs, so the air sealed behind the eardrum expands and pushes its way out. On the way down a slight vacuum forms until a swallow lets air back in.
Q 16The earlobe, unlike the rest of the outer ear, contains none of which firm, springy tissue?
Cartilage
Cartilage is missing from the lobe, which is soft fatty tissue instead. It has a large blood supply that may help to keep the ears warm.
Q 17The malleus, a middle-ear bone fixed to the eardrum, takes its Latin name from which tool?
Hammer
Hammer is what malleus means, and the bone behaves like one. It picks up the eardrum's vibrations and passes them to its neighbour the incus, whose own name means anvil.
Q 18Ear infections in young children often begin shortly after a bout of which everyday illness?
Common cold
Common cold swelling and mucus can block the narrow passage that drains the middle ear, trapping fluid where bacteria thrive. Five in six children have an ear infection by their third birthday.
Q 19Which three fluid-filled loops of the inner ear, set at right angles, detect the head's rotation?
Semicircular canals
Semicircular canals sit at right angles to one another, so each covers a different plane of movement. After a spin their fluid keeps swirling, which is why the room seems to carry on turning.
Q 20What is the medical name for the eardrum, the thin sheet between the outer and middle ear?
Tympanic membrane
Tympanic membrane tears often heal naturally within a few weeks. The membrane is cone-shaped rather than flat, and the first of the middle ear's tiny bones is fixed to its inner side.
Q 24What do doctors call the commonest ear infection, in which fluid builds up behind the eardrum?
Otitis media
Otitis media strikes about one person in nine worldwide every year, some 700 million cases. Doctors confirm it by looking at the eardrum, because the symptoms alone can mimic other earaches.
Q 25What collective name, from the Latin for 'tiny bones', is given to the middle ear's three bones?
Ossicles
Ossicles work as a chain of levers, turning the eardrum's wide, weak movements into shorter, stronger ones for the inner ear.
Q 26What is the name for the visible flap of the outer ear, which funnels sound towards the ear canal?
Pinna
Pinna is Latin for wing or fin. Its folds colour a sound differently depending on the angle it arrives from, which helps the brain judge whether a noise came from above or below.
Q 27What name is given to sound too high in frequency for even a healthy young human ear to detect?
Ultrasound
Ultrasound begins where young adult hearing stops. Dogs hear more than twice as high and cats higher still, so both pick up sounds that are silent to their owners.
Q 28Which ability lets a listener name any musical note without first hearing a reference tone?
Perfect pitch
Perfect pitch is more common among speakers of tonal languages such as Mandarin and Vietnamese, where the rise and fall of a word changes its meaning.
Q 29What name is given to the inner ear's balance apparatus, which also tracks the head's position?
Vestibular system
Vestibular system parts split the work: looped tubes sense rotation while two tiny organs sense straight-line acceleration. Faults in it bring dizziness, often with nausea.
Q 30Which skull bone houses the workings of the ear inside one of the densest parts of the skeleton?
Temporal
Temporal bone has a rock-hard petrous section, from the Latin for stone-like, wrapped around the inner ear. Ancient DNA survives so well there that it is a favourite sample for geneticists.