The Spine
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40 free The Spine trivia questions with answers — science & nature quiz, new questions added Oct 2026.
Your spine is doing several jobs as you read this: holding your head up, protecting the main cable of your nervous system and soaking up every step you take. It is also full of surprises, with bones named after myths and birds, and a length that changes over the course of a single day. This quiz covers the whole column from skull to tip. Expect questions on the vertebrae and their regions, including the thoracic or T-spine, the discs and nerves, common problems such as slipped discs and curved backs, and what health bodies say about looking after your back. There are lighter rounds too, on animal backbones, famous patients and spines in film, comics and art. It is pitched at curious adults, students revising anatomy and anyone running a health-themed quiz night. Every answer comes with a short explanation, so you will leave knowing a little more about the backbone that carries you around.
30 of 40 questions with answers and explanations. Play the quiz
Q 01A giraffe's neck is built from how many vertebrae, exactly the same number as a human neck?
Seven
Seven is the limit for almost every mammal, so the giraffe's neck grew by stretching each bone instead of adding more. Every one of them is over 28 cm long.
Q 02Which Greek Titan, condemned to hold up the heavens, names the vertebra that supports the skull?
Atlas
Atlas bore the weight of the sky, and the topmost vertebra bears the head in the same way. Unlike the bones below, it is a simple ring with no solid body.
Q 03Measured standing, at what time of day is a healthy person usually tallest, by a centimetre or more?
Morning
Morning wins, because hours of lying down add length that a day spent upright takes away again. In one study, 100 children averaged 1.54 cm shorter by late afternoon.
Q 04Which birds can swivel their heads about 270 degrees each way, thanks to fourteen neck vertebrae?
Owls
Owls also have extra-wide artery channels in those bones, so twisting the neck that far never cuts off the blood supply to the brain.
Q 05What do astronauts gain within a month in orbit, thanks to what weightlessness does to the spine?
Height
Height increases by about 2.5 cm, roughly an inch, once gravity stops pressing the spine and the rest of the skeleton together.
Q 06Which shelled animal can never leave its armour, because its spine and ribs are fused into it?
Turtle
Turtle shells are part of the skeleton, not a mobile home: the upper dome, called the carapace, is fused with the vertebrae and ribs.
Q 07The coccyx, the last few bones of the human spine, is named after the Greek word for which bird?
Cuckoo
Cuckoo is kokkyx in Greek, and ancient Greek physicians gave the bone that name because its tip resembles the bird's beak when seen from the side.
Q 08Which English king's skeleton, found under a Leicester car park, had a spine bent sharply sideways?
Richard III
Richard III had a curve that left one shoulder higher than the other, yet researchers concluded clothing could have disguised it. DNA from his sister's descendants matched the bones.
Q 09Seen from the side, the three natural curves of a healthy spine form the shape of which letter?
S
S is the shape, and its bends work as shock absorbers. The neck's curve is not there at birth: it forms once a baby can hold up its head.
Q 10Christopher Reeve, paralysed when a riding fall broke his top two vertebrae, played which hero?
Superman
Superman made Reeve a star in 1978. After the fall at an equestrian event in Virginia he used a wheelchair and a ventilator for the rest of his life.
Q 11Which predatory fish have a backbone of cartilage, like the rest of their boneless skeleton?
Sharks
Sharks get a bargain from the swap: cartilage is flexible and durable yet only about half as dense as bone, so a lighter skeleton saves energy.
Q 12Nearly all mammals, even giraffes, share a neck vertebra count; which tree-dweller breaks the rule?
Sloth
Sloth necks ignore the mammal standard: two-toed species have five or six vertebrae there and three-toed species nine. The only other rule-breaker is the manatee, with six.
Q 13Which German dog breed is so prone to spinal disc disease that about a quarter develop it?
Dachshund
Dachshund backs pay for the sausage shape: vets put the problem down partly to an extremely long spinal column paired with a short rib cage.
Q 21Which sideways curve of the spine usually appears between the ages of ten and twenty?
Scoliosis
Scoliosis did not slow Usain Bolt, who wrote that it left his right leg half an inch shorter than his left. Girls tend to be affected more severely than boys.
Q 22Which region of the spine has the largest vertebrae, built to help carry the body's weight?
Lumbar
Lumbar vertebrae, the five in the lower back, are the largest segments of the whole column, and they lack the rib joints found on the bones higher up.
Q 23Which term means an excessive rounding of the thoracic spine, nicknamed dowager's hump in old age?
Kyphosis
Kyphosis in its most common form is postural, put down to slouching, and in the young it can be reversed by correcting muscle imbalances.
Q 14Which Batman villain wore the hero down, then broke his back, in the comic storyline Knightfall?
Bane
Bane first freed Arkham Asylum's most dangerous inmates, leaving his exhausted enemy an easy target. The back-breaking scene was restaged in the film The Dark Knight Rises.
Q 15Which hunchbacked bell-ringer did Victor Hugo name after the Sunday the foundling was discovered?
Quasimodo
Quasimodo was left at Notre-Dame on the first Sunday after Easter, which carries that name. A real hunchbacked stone carver may have worked at the cathedral while Hugo was writing.
Q 16Which Mexican artist painted her damaged spine as a crumbling pillar in The Broken Column?
Frida Kahlo
Frida Kahlo was 18 when a bus accident broke her backbone in three places. She painted the picture in 1944, when doctors had put her in a steel corset.
Q 17Which future US president had several spinal operations as a senator and was given the last rites?
John F. Kennedy
John F. Kennedy turned his convalescence to good use, publishing Profiles in Courage, the book that won him a Pulitzer Prize in 1957.
Q 18Which therapy based on adjusting the spine did Daniel David Palmer found in Iowa in the 1890s?
Chiropractic
Chiropractic grew from the belief of Palmer, a magnetic healer, that manipulating the spine by hand could cure disease. His first patient worked in the same building as his office.
Q 19Which neck injury, caused when the head jerks back and forth, is typical of rear-end car crashes?
Whiplash
Whiplash is older than the car: before motoring the same injury was called railway spine, because doctors saw it mostly after train collisions.
Q 20Which condition, felt as pain shooting down one leg, shares its name with the body's longest nerve?
Sciatica
Sciatica is caused about nine times in ten by a bulging spinal disc pressing on a nerve root, and most cases clear up by themselves in under six weeks.
Q 24Which triangular bone, made of five fused vertebrae, sits at the back of the pelvis?
Sacrum
Sacrum is short for the Latin os sacrum, meaning sacred bone, a translation of the Greek name used by the physician Galen. Why he called it that is unclear.
Q 25Counting those that fuse at its base, how many vertebrae does a typical human spine contain?
33
33 is the usual total: 24 separate bones stacked above nine that fuse into two solid blocks at the base. The count at the very tip varies a little between people.
Q 26Which British princess chose a wedding dress cut to show the scar from her childhood spinal surgery?
Eugenie
Princess Eugenie had titanium rods fixed either side of her spine at the age of 12, and showed the scar to inspire others living with the same condition.
Q 27Which childbirth pain relief is injected just outside the membrane around the spinal cord?
Epidural
Epidural comes from the Greek for upon plus dura mater, the membrane's name. A thin tube can stay in place throughout, so the medicine keeps flowing for as long as it is needed.
Q 28Which automatic response, like jerking a hand off a hot stove, is triggered within the spinal cord?
A reflex
A reflex takes a shortcut: the incoming signal fires motor nerves inside the cord, and the brain only analyses what happened once the muscles are already moving.
Q 29Which bone-thinning disease, common after the menopause, can crush vertebrae and cause a stoop?
Osteoporosis
Osteoporosis usually gives no warning: there are typically no symptoms until a bone breaks, and the vertebrae are among the bones that most commonly give way.
Q 30Which B vitamin, taken before and during pregnancy, can prevent most cases of spina bifida?
Folic acid
Folic acid is the manufactured form of folate, vitamin B9, and more than 80 countries have it added to certain foods, such as flour, to cut the number of cases.