Science & Nature
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Shaped like a horseshoe, this is the only bone in the body that doesn't touch or connect to any other bone.
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The bones of the fingers and toes share this collective name, with fourteen in each hand and each foot.
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The only movable bone of the skull, this is the medical name for the lower jaw.
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Twelve pairs of these curved bones form a protective cage around the heart and lungs.
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Sometimes called the tailbone, this small bone sits at the very bottom of the spinal column.
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This thin, plow-shaped bone forms the lower and back part of the wall dividing the two nostrils.
VOMERThis single skull bone forms the forehead and the upper part of each eye socket.
FRONTALThis ankle bone sits atop the heel bone and connects the foot to the shinbone and fibula.
TALUSA curled, shell-shaped pair of these bones project into the nasal cavity to help warm and humidify inhaled air.
CONCHANicknamed for its anvil-like shape, this middle-ear bone sits between the hammer and the stirrup.
INCUSNamed for its crescent-moon shape, this wrist bone sits between the scaphoid and its neighbor toward the pinky.
LUNATENamed simply for its shape, this bone sits on the outer side of the midfoot.
CUBOIDThe largest of the wrist's eight carpal bones, this one sits roughly in the center of the wrist.
CAPITATEThis skull bone forms the back and base of the cranium and contains the opening where the spinal cord passes through.
OCCIPITALEach middle ear contains this many tiny bones, working together to transmit sound to the inner ear.
THREEThe smallest and most fragile bones of the face, a pair of these sit near the inner corner of each eye socket.
LACRIMALCommonly called the breastbone, this flat bone sits at the center of the chest.
STERNUMThis is the single long bone of the upper arm, running from the shoulder to the elbow.
HUMERUSEach hand contains this many finger bones, three in every finger and two in the thumb.
FOURTEENCommonly called the shoulder blade, this flat, triangular bone sits on the back of the rib cage.
SCAPULACommonly called the heel bone, this is the largest bone in the foot.
CALCANEUSThis forearm bone, on the pinky-finger side, forms the point of the elbow.
ULNAThis triangular bone at the base of the spine is formed from five fused vertebrae.
SACRUMThis butterfly-shaped bone sits at the base of the skull and forms part of the eye socket and temple.
SPHENOIDShaped like a stirrup, this is the smallest bone in the entire human body.
STAPESLatin for 'wedge-shaped,' three small bones bearing this name sit between the navicular and the metatarsals.
CUNEIFORMNamed for its pea-like shape, this is the smallest of the eight wrist bones.
PISIFORMCommonly called the collarbone, this is one of the most frequently broken bones in the body.
CLAVICLEThe human body has exactly this many collarbones, one on each side of the upper chest.
TWONamed for its boat-like shape, this bone sits on the inner side of the midfoot.
NAVICULARThe smallest bone in the wrist's distal row, this one shares its name with another four-sided geometric shape.
TRAPEZOIDThis bone forms the upper jaw and holds the upper teeth in place.
MAXILLAThe lower back, or lumbar region, of the spine is made up of this many large vertebrae.
FIVENamed for a hook-like projection on its surface, this wrist bone sits on the pinky side of the hand.
HAMATENamed for the Greek Titan who held up the sky, this is the topmost neck vertebra, supporting the skull.
ATLASThis is the longest, heaviest, and strongest bone in the entire human body.
FEMURThis second cervical vertebra has a bony peg that lets the head rotate from side to side.
AXISNearly every mammal, from a human to a giraffe, has this many bones in its neck.
SEVENCommonly called the shinbone, this is the larger and stronger of the two lower-leg bones.
TIBIAThis bone forms the prominence of the cheek and part of the outer eye socket.
ZYGOMATICA pair of these skull bones house the structures of the ear and form part of each cheekbone arch.
TEMPORALThis wrist bone at the base of the thumb shares its name with a four-sided geometric shape.
TRAPEZIUMA pair of small, fused bones form the bridge of the nose, just below the frontal bone.
NASALThis spongy bone lies between the eye sockets and forms much of the nasal cavity's roof.
ETHMOIDThe most commonly fractured wrist bone, its name comes from the Greek word for 'boat'.
SCAPHOIDThe largest of the three tiny middle-ear bones, this one is nicknamed for its hammer-like shape.
MALLEUSThis L-shaped bone forms part of the roof of the mouth and the floor and wall of the nasal cavity.
PALATINEThe middle section of the spine, the thoracic region, is made up of this many vertebrae, one per rib pair.
TWELVECounting the fused sacrum and coccyx as one bone each, the adult spinal column contains this many vertebrae.
TWENTYSIXCommonly called the kneecap, this is the largest sesamoid bone in the body.
PATELLAThis slender lower-leg bone runs alongside the shinbone but bears very little body weight.
FIBULAA pair of these skull bones form the roof and upper sides of the cranium, between the frontal and occipital bones.
PARIETALThe wrist contains this many small carpal bones, arranged in two rows of four.
EIGHTThis forearm bone, on the thumb side, rotates to let the palm face up or down.
RADIUS