Skeletal System

The skeletal system is the internal framework of the body. It consist of bones supporting the body and all its organs. We have about 270 bones when we are born but then that decreases to 206 bones by adulthood. The skeleton has six function:

1. Support: It provides support and structure to the body. If a certain bone is not functioning right or giving support, then it can ruin everything around it. An example can be seen in the chest. Without the rib cages and all the bones around it, it would lead to failure of the lungs.
2. Movement: Movement in the bones is done by the joints. We humans have a thing called a ball and socket joint that allows greater range movement like our arms. Other bones in our body use a pivot joint that does not allow so much movement like our necks.
3. Protection: The bones in our body protects important organs from being damages. The skull protects the brain and the rib cage protects our lungs.
4. Blood cell production: Blood cell developed in the bone marrow.
5. Storage: The bone stores calcium and iron involved in iron metabolism.
6. Endocrine regulation: This regulates the blood sugar and it is involved in secreting insulin.

The skeletal system can also produce many disorders.

1. Arthritis: This is an inflammation of the joints. As you can see from above, joints are used for movement. This disorder makes it very hard and painful to move.
2. Osteoporosis: Bone mineral is reduced and there is a big chance of fractures.