Medical Definition of Skeleton, bones of the
Skeleton, bones of the: The human body has 206 bones. These consist of 80 axial (head and trunk) bones and 126 appendicular (upper and lower extremity) bones.
Axial bones: The 80 axial bones comprise 29 bones in the head and 51 bones in the trunk.
Head bones: The 29 head bones consist of 8 cranial bones, 14 facial bones, the hyoid bone, and 6 auditory (ear) bones.
Trunk bones: The 51 trunk bones consist of 26 vertebrae, 24 ribs and the sternum.
Appendicular bones: The 126 appendicular bones are made up of 64 bones in the upper extremities (the arms, wrists, and hands) and 62 bones in the lower extremities (the legs, ankles, and feet).
Upper extremity bones: The 64 upper extremity bones consist of 10 shoulder and arm, 16 wrist and 38 hand bones.
Lower extremity bones: The 62 lower extremity bones consist of 10 hip and leg, 14 ankle and 38 foot bones.
Last Editorial Review: 5/13/2016
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