Wednesday, March 19, 2008

Your Body as a whole-Skeleton

THE General framework of the body is built up mainly of a series of bones, supplemented, however, in certain regions by pieces of cartilage; the bony part of the framework constitutes the skeleton.
The Skeleton.—The skeleton is of mesodermal origin, and may be divided into (a) that of the trunk (axial skeleton), comprising the vertebral column, skull, ribs, and sternum, and (b) that of the limbs (appendicular skeleton).

In the skeleton of the adult there are 206 distinct bones, as follows:—
1)Axial Skeleton
Vertebral column 26
Skull 22
Hyoid bone 01
Ribs and sternum 25
2)Appendicular Skeleton
Upper extremities(Hands-both) 64
Lower extremities(Legs-both) 62
3)Auditory ossicles 06

Total 206
{note-The patellæ are included in this enumeration}

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