The skeleton is form of  The skeleton is form of bones that are made of a substance called cartilage organic, this substance called ossein, solidified.

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Presentation transcript:

The skeleton is form of  The skeleton is form of bones that are made of a substance called cartilage organic, this substance called ossein, solidified with a marble-like substance containing phosphate and calcium and magnesium carbonates.

How many bones we have  babys have 336 bones and adults 206 bones.  Why?  Because when we grow some bones weld

They protec ?  Skeleton protecto our organs and sitems

Periosteum  Periosteum it's a thin, dense membrane that contains nerves and blood vessels.

Compact bone  Compact bone this part is smooth and very hard.

Cancellou and bone marrow  Cancellou bone, which looks a bit like a sponge. Cancellous bone is not quite as hard as compact bone, but it is still very strong.  bone marrow bone marrow is sort of like a thick jelly, and its job is to make blood cells.