Skeletal system: Difference between revisions

Skeletal system (view source)

28 bytes added , 1 September 2008

no edit summary

110,311

edits

@@ Line 1: / Line 1: @@
 [[Image:Human skeleton.png|thumb|250px|Human skeleton showing the axial (blue highlight) and appendicular bones.]]
-The '''skeletal system''' is a support and protection structure for [[animals]]. There are two main types of skeletal systems. The endoskeleton is an interal support system of the type possessed by [[humans]] and other [[vertebrates]], which is made of bone. The exoskeleton is an external system that was designed for many invertebrates such as the [[crustaceans]] and [[insects]]. The composition of exoskeletons vary widely, but known constituents include [[calcium]] [[salts]], [[protein]], [[carbohydrates]] ([[chitin]]) and silicate.
+The '''skeletal system''' is the [[biological system]] that provides support and protection for [[animals]]. There are two main types of skeletal systems. The endoskeleton is an interal support system of the type possessed by [[humans]] and other [[vertebrates]], which is made of bone. The exoskeleton is an external system that was designed for many invertebrates such as the [[crustaceans]] and [[insects]]. The composition of exoskeletons vary widely, but known constituents include [[calcium]] [[salts]], [[protein]], [[carbohydrates]] ([[chitin]]) and silicate.
 '''Main Functions:'''