The
Spine or vertebral,column has two main functions;it serve as a
protective surrounding for the delicate spinal cord. and form the
supporting back bone of the Skeleton .The spine consist of 24
separate differently shaped bones vertebrae with a curved
,triangular bone the sacrum at the bottom.The sacrum is made up of
fused vertebrae ; at the lower end is a small tail like
structure made up of tiny bones ,collectively called the
coccyx.Between each pair of vertebrae is a disk of cartilage that
cushions the bones during the movement.The top two vertebrae
differ in appearance from the others and works as a pair ;the
first called the atlas ,rotates around a stout vertical peg on
the second,the axis.This arrangement allows the skull to move freely
up and down, and from side to side.
INDUSTRIAL REVOLUTION Starts in Europe particularly in England in eighteen century.It changed the whole of Europe and England 's economy.During this period New machines are invented in England to speed up the spinning of wool and cotton .At first they were powered by water wheels but later steam engines are developed.Iron become cheaper and stronger as Iron making techniques improved.Canals are dug to carry coal from the mines and to transport finished goods.After ...
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