List of bones of the human skeleton

From Wikipedia, the free encyclopedia

A typical adult human skeleton consists of the following 206 bones, though a small portion of the human population have an extra bone, occurring in the form of an extra rib, or an extra lumbar vetebrate. (Numbers in bold refer to the diagram at right.)

In the skull (22):

Cranial bones:
- 1. frontal bone
- 2. parietal bone (2)
- 3. temporal bone (2)
- 4. occipital bone
- sphenoid bone
- ethmoid bone
Facial bones:
- 5. zygomatic bone (2)
- 6. superior and inferior maxilla
- 9. nasal bone (2)
- 7. mandible
- palatine 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):

25. clavicle or collarbone (2)
29. scapula or shoulder blade (2)

In the thorax (25):

10. sternum
28. ribs (2 x 12)

In the vertebral column (26):

8. cervical vertebrae (7) incl. atlas & axis
thoracic vertebrae (12)
14. lumbar vertebrae (5)
16. sacrum
coccyx

In the arms (6):

11. humerus (2)
- 26. condyles of humerus
12. ulna (2)
13. radius (2)
- 27. head of radius

In the hands (54):

Wrist (carpal) bones:
- scaphoid bone (2)
- lunate bone (2)
- triquetrum bone (2)
- pisiform bone (2)
- Trapezium (bone) (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)

sesamoid bones (2) In the pelvis (2):

15. pelvis (2)

In the legs (8):

18. femur (2)
- 17. hip joint (joint, not bone) (2)
- 22. greater trochanter of femur
- 23. condyles of femur
19. patella (2)
20. tibia (2)
21. fibula (2)