List of bones of the human skeleton

From Simple English Wikipedia, the free encyclopedia

A typical adult human skeleton consists of the following 206 bones.

In the skull (22):

  • Cranial bones:
    • frontal bone
    • parietal bone (2)
    • temporal bone (2)
    • occipital bone
    • sphenoid bone
    • ethmoid bone
  • Facial bones:
    • mandible
    • maxilla (2)
    • palatine bone (2)
    • zygomatic bone (2)
    • nasal bone (2)
    • lacrimal bone (2)
    • vomer bone
    • inferior nasal conchae (2)

In the middle ears (6):

  • malleus (2)
  • incus (2)
  • stapes (2)

In the throat (1):

  • hyoid bone

In the shoulder girdle (4):

  • scapula or shoulder blade (2)
  • clavicle or collarbone (2)

In the thorax (25):

  • sternum
  • ribs (2 x 12)

In the vertebral column (24):

  • cervical vertebrae (7) incl. atlas & axis
  • thoracic vertebrae (12)
  • lumbar vertebrae (5)

In the arms (6):

  • humerus (2)
  • radius (2)
  • ulna (2)

In the hands (54):

  • Wrist (carpal) bones:
    • scaphoid bone (2)
    • lunate bone (2)
    • triquetral bone (2)
    • pisiform bone (2)
    • trapezium (2)
    • trapezoid bone (2)
    • capitate bone (2)
    • hamate bone (2)
  • Palm or metacarpal bones:
    • metacarpal bones (5 × 2)
  • Finger bones or phalanges:
    • proximal phalanges (5 × 2)
    • intermediate phalanges (4 × 2)
    • distal phalanges (5 × 2)

In the pelvis (4):

  • coccyx
  • sacrum
  • ossa coxae (hip bones or innominate bones) (2)

In the legs (8):

  • femur (2)
  • patella (2)
  • tibia (2)
  • fibula (2)

In the feet (52):

  • Ankle (tarsal) bones:
    • calcaneus (heel bone) (2)
    • talus (2)
    • navicular bone (2)
    • medial cuneiform bone (2)
    • intermediate cuneiform bone (2)
    • lateral cuneiform bone (2)
    • cuboid bone (2)
  • Instep bones:
    • metatarsal bone (5 × 2)
  • Toe bones:
    • proximal phalanges (5 × 2)
    • intermediate phalanges (4 × 2)
    • distal phalanges (5 × 2)

The infant skeleton has the following bones in addition to those above:

  1. sacral vertebrae (4 or 5), which fuse in adults to form the sacrum
  2. coccygeal vertebrae (3 to 5), which fuse in adults to form the coccyx
  3. ilium, ischium and pubis, which fuse in adults to form the pelvic girdle