Description+-+Function

= Here's a quick description about the Skeletal system and it's function! =

First of all what is the Skeletal system made up of? It's mostly made up of muscles and bones. These bone are light weight but yet they are very strong. In fact bones are so strong they can absorbs more force without breaking than can concert or granite rock! Bones are only 20 percent of an average adult's body weight is bone. That shows how light they are.

The adult human body has 206 bones. Infants have 300-350 bones when they are born. But some of these bones fues togerther as the infant grows. (A most obvious examples are in the skull, scarum and hip bones.) The number of overall bones drops to 206 bones that most adults have.

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The largest bone in the body is the femur. It is the bone in the upper section of your leg (thigh or upper hind limb), from your hip to knee. It is classified as a long bone. The smallest bone in the Human body is located in you ear. It is called the Stirrup. The smallest bones in your whole body are located in your ear. =====

= The function of the Skeletal System! =

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What are the three main functions of the Skeletal System? The first one is support.The skeleton is the framework of the body, it supports the softer tissues and provides points of attachment for most skeletal muscles. Second is 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. And the last most importan thing is Assisting in Movement. Skeletal muscles are attached to bones, therefore when the associated muscles contract they cause bones to move. =====

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Why is the Skeletal System necessary for our survival? Not only does it provide support for all the tissues and organs that make up the body, protection for the most important organs and allow movement as we know it; the skeletal system provides the birthplace of new red blood cells in the marrow of bone. =====  l