Anatomegaly archive
Every past anatomy set, with each round's body region, answer and explanation. Newest first.
5 past puzzles, up to Friday 6 November 2026. Today’s and future puzzles are never shown here.
November 2026
#5 · Friday 6 November 2026 Hard
What’s this bone? · Hand bones
Name the highlighted wrist bone.
Answer: Hamate
‘Hamate’ means hooked. Its hook can snap in golfers, cricketers and batters when the grip handle jams into the palm on a mistimed swing.
Name the structure · Ear
Name the highlighted ossicle.
Answer: Incus
The anvil, middle of the three ear bones. The ossicles are already close to adult size at birth, so they barely grow while the rest of you does.
Name the structure · Knee
Name the highlighted ligament.
Answer: Anterior cruciate ligament
Front of the cross, hence ‘anterior’. Pop, swelling within hours, wobbly knee. Women footballers tear theirs two to eight times more often than men.
Name the structure · Heart
Name the highlighted valve.
Answer: Mitral valve
Two leaflets between the left atrium and ventricle. It’s named because someone thought it looked like a bishop’s mitre. Yes, really.
Which nerve?
Winged shoulder blade when pushing against a wall. Which nerve?
Answer: Long thoracic nerve
It supplies serratus anterior, which pins the shoulder blade to the ribs. It runs long and exposed down the chest wall, so heavy backpacks and surgery can injure it.
#4 · Thursday 5 November 2026 Medium
What’s this bone? · Hand bones
Name the highlighted wrist bone.
Answer: Scaphoid
Fall on an outstretched hand, tender snuffbox: think scaphoid. Its blood supply enters from the far end, so a break across the middle can starve the near piece.
Name the structure · Brain
Name the highlighted structure.
Answer: Cerebellum
Latin for ‘little brain’: about a tenth of brain volume, yet roughly four in five of its neurons. Neuroscientist Suzana Herculano-Houzel counted them by turning brains into soup.
Name the structure · Abdomen
Name the highlighted structure.
Answer: Appendix
Maybe not useless after all: it may act as a safe house for good gut bacteria. Its tip can point in lots of directions, which is why appendicitis pain can wander.
Name the structure · Eye
Name the highlighted layer.
Answer: Cornea
The clear front window, doing about two-thirds of the eye’s focusing. It has no blood vessels and takes much of its oxygen straight from the air.
Which nerve?
Which nerve supplies biceps?
Answer: Musculocutaneous nerve
It punches through coracobrachialis, powers elbow flexion, then ends as a skin nerve on the outer forearm. Hence ‘musculo’ plus ‘cutaneous’.
#3 · Wednesday 4 November 2026 Medium
What’s this bone? · Skeleton
Name the highlighted forearm bone.
Answer: Radius
The thumb-side forearm bone. It rolls around the ulna when you turn a doorknob, and it’s the usual wrist break after a fall on an outstretched hand.
Name the structure · Heart
Name the highlighted vessel.
Answer: Aorta
The body’s main pipe, about as wide as your thumb. It rises out of the left ventricle, arches over the top and dives down behind the heart.
Which nerve? · Hand, back
Which nerve gives feeling to the highlighted patch on the back of the hand?
Answer: Radial nerve
The superficial branch of the radial nerve owns the back of the first web space. It’s the go-to spot for testing radial sensation after an upper arm fracture.
Name the structure · Ear
Name the highlighted structure.
Answer: Tympanic membrane
The eardrum: about a tenth of a millimetre thick, thinner than paper. Small holes often heal on their own within a few weeks.
Which nerve?
After a shoulder dislocation: weak deltoid and a numb patch on the outer shoulder. Which nerve?
Answer: Axillary nerve
It wraps around the neck of the humerus, so dislocations stretch it. The numb ‘regimental badge’ patch, where a sleeve badge would sit, gives it away.
#2 · Tuesday 3 November 2026 Easy
Name the structure · Abdomen
Name the highlighted organ.
Answer: Liver
Your biggest internal organ and a full-time chemistry lab. It can regrow from about a quarter of its tissue, which is why living donors can give a slice.
Name the structure · Eye
Name the highlighted structure.
Answer: Lens
Clear and flexible, it fine-tunes focus. It keeps adding layers all your life, like an onion, and slowly stiffens. Hello, reading glasses at 45.
What’s this bone? · Skeleton
Name the highlighted bone.
Answer: Patella
The kneecap: the body’s biggest sesamoid bone, meaning it grows inside a tendon. Babies have a cartilage version that only turns to bone at around three to six.
Name the structure · Lungs
Name the highlighted tube.
Answer: Trachea
The windpipe, held open by C-shaped rings of cartilage. The open back of each ‘C’ lets the oesophagus bulge forward when you swallow a big mouthful.
Which nerve?
You knock your ‘funny bone’. Which nerve just zapped you?
Answer: Ulnar nerve
Not funny, not a bone. The ulnar nerve sits just under the skin behind the elbow, so a knock fires off tingles into your ring and little fingers.
#1 · Monday 2 November 2026 Easy
What’s this bone? · Skeleton
Name the highlighted bone.
Answer: Femur
The thigh bone: your longest and strongest. It’s roughly a quarter of your height, which is how forensic teams estimate stature from a single bone.
Name the structure · Heart
Name the highlighted chamber.
Answer: Left ventricle
The muscly one that pumps blood to the whole body. Diagrams face you, so the patient’s left is on your right. Everyone falls for that once.
Name the structure · Brain
Name the highlighted lobe.
Answer: Frontal lobe
Planning, personality and impulse control. In 1848 an iron rod shot through Phineas Gage’s frontal lobe; he survived, but friends said he was ‘no longer Gage’.
Which nerve?
Which nerve supplies the diaphragm, your main breathing muscle?
Answer: Phrenic nerve
‘C3, 4, 5 keeps the diaphragm alive.’ It starts in the neck because the diaphragm began life up there in the embryo, then migrated down, dragging its nerve along.
What’s this bone? · Skeleton
Name the highlighted bone.
Answer: Clavicle
The collarbone. It’s the first bone in the body to start hardening, around week five or six of pregnancy, and one of the most commonly broken bones in kids.