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Skeletal system: Difference between revisions
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[[Image:Vertebral column.png|250px|thumb|right|Human vertebral column]] | [[Image:Vertebral column.png|250px|thumb|right|Human vertebral column]] | ||
The '''skeletal system''' | The '''skeletal system''' is a support and protection structure for organism. | ||
There are two main types of skeletal systems. The endoskeleton is an interal support system of the type possessed by human and other vertebrates, which is made of bones. The exoskeleton is an external system that was designed for many invertebrates such as the [[crustaceans]] and [[insects]]. | |||
'''Main Functions:''' | '''Main Functions:''' | ||
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Bones of the endoskeletal system continuously produce blood cells. | Bones of the endoskeletal system continuously produce blood cells. | ||
== Exoskeleton | == Exoskeleton == | ||
[[Image:Spider-skin.jpg|thumb|150px|thumb|An empty carcass of a [[spider]]]] | [[Image:Spider-skin.jpg|thumb|150px|thumb|left|An empty carcass of a [[spider]]]] | ||
