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. (Numbers in bold refer to the diagram at right.)
The human skeleton
In the skull (22):
* Cranial bones:
o 1. frontal bone
o 2. parietal bone (2)
o 3. temporal bone (2)
o 4. occipital bone
o sphenoid bone
o ethmoid bone
* Facial bones:
o 5. zygomatic bone (2)
o 6. superior and inferior maxilla
o 9. nasal bone (2)
o 7. mandible
o palatine bone (2)
o lacrimal bone (2)
o vomer bone
o 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)
o 26. condyles of humerus
* 12. ulna (2)
* 13. radius (2)
o 27. head of radius
In the hands (54):
* Wrist (carpal) bones:
o scaphoid bone (2)
o lunate bone (2)
o triquetrum bone (2)
o pisiform bone (2)
o Trapezium (bone) (2)
o trapezoid bone (2)
o capitate bone (2)
o hamate bone (2)
* Palm or metacarpal bones:
o metacarpal bones (5 × 2)
* Finger bones or phalanges:
o proximal phalanges (5 × 2)
o intermediate phalanges (4 × 2)
o distal phalanges (5 × 2)
In the pelvis (2):
* 15. pelvis (2)
In the legs (8):
* 18. femur (2)
o 17. hip joint (joint, not bone) (2)
o 22. greater trochanter of femur
o 23. condyles of femur
* 19. patella (2)
* 20. tibia (2)
* 21. fibula (2)
In the feet (52):
* Ankle (tarsal) bones:
o calcaneus (heel bone) (2)
o talus (2)
o navicular bone (2)
o medial cuneiform bone (2)
o intermediate cuneiform bone (2)
o lateral cuneiform bone (2)
o cuboidal bone (2)
* Instep bones:
o metatarsal bone (5 × 2)
* Toe bones:
o proximal phalanges (5 × 2)
o intermediate phalanges (4 × 2)
o 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
2007-01-13 20:01:42
·
answer #1
·
answered by KGJ 5
·
1⤊
0⤋
There are 206 bones in the adult human body. There are 350 bones in the infant. Where do they go? Many bones in the infant fuse (ex. skull). PS - More than one half of the 206 bones are found in the hands and feet.
2007-01-13 20:06:56
·
answer #2
·
answered by RUF lvr 1
·
0⤊
0⤋
On average, an adult human has 206 bones (according to Gray's Anatomy, but the number can vary slightly from individual to individual), but a baby is born with approximately 270 bones. The difference comes from a number of small bones that fuse together during growth, such as the sacrum and coccyx of the vertebral column.
2007-01-13 20:02:10
·
answer #3
·
answered by J.SWAMY I ఇ జ స్వామి 7
·
0⤊
1⤋
206 bones in the body.
2007-01-13 21:12:20
·
answer #4
·
answered by Anonymous
·
0⤊
0⤋
206~208
2007-01-13 20:19:07
·
answer #5
·
answered by teh c 5
·
0⤊
0⤋
203. Sometimes 206 due to normal anatomical variations.
2007-01-13 19:51:20
·
answer #6
·
answered by Ro' 6
·
0⤊
0⤋
i think it,s 306 bones
2007-01-13 19:50:52
·
answer #7
·
answered by i,m here if you need to talk. 6
·
0⤊
0⤋
208 depending on who you talk to.
2007-01-13 19:50:49
·
answer #8
·
answered by alwaysmoose 7
·
0⤊
0⤋