The History of Skeletons
For
years archaeologists have studies skeletons and bones. They have
dug up, opened and examined bones from our generation and generations
before us. There really isn't much history about skeletons so this
page deals more with the skeletons bones rather than the history
itself. Here are some interesting facts.
The
skeleton is the internal structure that
holds human and animal together with the
help of a muscular system which allows
us to move about. It also protects delicate
and vital organs found inside the body.
The human skeleton begins with 275 different
bones at the time of birth and as the
body matures some of these bones become
fused together leaving the adult body
with only 206 bones. Bones such as wrists
and ankles are some of the bones that
merge together.
There are two types of
bones systems in the human body. The first is the axial skeleton
and the second appendicular skeleton. The axial skeleton comprised
eighty bones in the skull, ribs, and sternum. The appendicular skeleton
has one hundred and twenty six bones from the shoulders, pelvis,
and attached limbs. Each bone is divided into three sections; the
compact bone, the soft bone marrow, and the sponge bone. The soft
bone marrow is found within the hollow center of the bone - this
is where red blood cells are produced.
Even
the strongest human bones can experience dislocations and fractures.
A dislocation happens when a bone is pushed or pulled out of its
socket. Dislocated bones can often be repositioned in their sockets
by either pushing or pulling on the bone with a sharp pressure.
Fractures and breaks in the bone can be more serious and may take
months to heal.
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