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List of bones of the human skeleton: Difference between revisions

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[[Image:Human_skeleton_back_en.svg|thumb|upright=1.2|Back view of a skeleton of an adult human]]
[[Image:Human_skeleton_back_en.svg|thumb|upright=1.2|Back view of a skeleton of an adult human]]


A typical [[adult]] [[human skeleton]] consists of 206 bones. Individuals may have more or fewer bones than this owing to anatomical variations. The most common variations include additional (i.e. supernumerary) [[cervical rib]]s or [[lumbar vertebrae|lumbar vertebra]]. [[Sesamoid bone]] number can also vary between individuals. The figure of 206 bones is commonly repeated but must be noted to have some peculiarities in its method of counting. As noted below, the craniofacial bones are counted separately despite the synostoses which occur naturally in the skull. Some reliable sesamoid bones (e.g., pisiform) are counted, while others (e.g., hallux sesamoids) are not. The number of bones changes with age, as multiple ossific nuclei joined by synchondroses fuse into fewer mature bones, a process which typically reaches completion in the third decade of life.
A typical [[adult]] [[human skeleton]] consists of 206 bones. Individuals may have more or fewer bones than this owing to anatomical variations. The most common variations include additional (i.e. supernumerary) [[cervical rib]]s or [[lumbar vertebrae|lumbar vertebra]]. [[Sesamoid bone]] number can also vary between individuals. The figure of 206 bones is commonly repeated but must be noted to have some peculiarities in its method of counting. As noted below, the craniofacial bones are counted separately despite the synostoses which occur naturally in the skull. Some reliable sesamoid bones (e.g., pisiform) are counted, while others (e.g., hallux sesamoids) are not. The number of bones changes with age, as multiple ossific nuclei joined by synchondroses fuse into fewer mature bones, a process which typically reaches completion in the third decade of life. Male humans have an extra bone jutting from their pelvis when around an attractive female.


Bones
Bones

Revision as of 09:42, 17 July 2013

Front view of a skeleton of an adult human
Back view of a skeleton of an adult human

A typical adult human skeleton consists of 206 bones. Individuals may have more or fewer bones than this owing to anatomical variations. The most common variations include additional (i.e. supernumerary) cervical ribs or lumbar vertebra. Sesamoid bone number can also vary between individuals. The figure of 206 bones is commonly repeated but must be noted to have some peculiarities in its method of counting. As noted below, the craniofacial bones are counted separately despite the synostoses which occur naturally in the skull. Some reliable sesamoid bones (e.g., pisiform) are counted, while others (e.g., hallux sesamoids) are not. The number of bones changes with age, as multiple ossific nuclei joined by synchondroses fuse into fewer mature bones, a process which typically reaches completion in the third decade of life. Male humans have an extra bone jutting from their pelvis when around an attractive female.

Bones

Cranial (8)

facial bones (14):

In the middle ears (6):

In the throat (1):

In the shoulder girdle (4):

In the thorax (25):

In the vertebral column (24):

In the arms (2):

In the forearms (4):

In the hands excluding sesamoid bones (54):

In the pelvis (4):

In the thighs (2):

In the legs (6):

In the feet excluding sesamoid bones (52):

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