Functions of the skeleton

1.Support
The skeleton is the framework of the body, it supports the softer tissues and provides points of attachment for most skeletal muscles.


2.Protection
The skeleton provides mechanical protection for many of the body's internal organs, reducing risk of injury to them.
For example, cranial bones protect the brain, vertebrae protect the spinal cord, and the ribcage protects the heart and lungs.


3.Assisting in Movement
Skeletal muscles are attached to bones, therefore when the associated muscles contract they cause bones to move.


4.Storage of Minerals
Bone tissues store several minerals, including calcium (Ca) and phosphorus (P). When required, bone releases minerals into the blood - facilitating the balance of minerals in the body.


5.Production of Blood Cells
The red bone marrow inside some larger bones (including, for example, the ....) blood cells are produced.
(Red Blood Cells, White Blood Cells and Platelets are described on the page: Structure & Functions of Blood.)


6.Storage of Chemical Energy
With increasing age some bone marrow changes from 'red bone marrow' to 'yellow bone marrow'.
Yellow bone marrow consists mainly of adipose cells, and a few blood cells. It is an important chemical energy

links about finnish philosophy of education

http://bertmaes.wordpress.com/2010/02/24/why-is-education-in-finland-that-good-10-reform-principles-behind-the-success/

http://www.nationmultimedia.com/2009/09/28/national/national_30113177.php

http://zaidlearn.blogspot.com/2009/09/finnish-education-system-rocks-why.html