Skeletal System Website  
Biology4Kids.com: Animal Systems: Skeletal System

Parts of the system-

Consist of 206 bones

Facts-

The adult human skeletal system consists of 206 bones, as well as a network of tendons, ligaments and cartilage that connects them. The skeletal system performs vital functions.

Animals with internal skeletons made of bone, called vertebrates, are actually the minority, as 98 percent of all animals are invertebrates, meaning they do not have internal skeletons or backbones. Human infants are born with 300 to 350 bones.

The skeletons of adult males and females have some variation, primarily to accommodate childbirth. The female pelvis is flatter, more rounded and proportionally larger.

A male's pelvis is about 90 degrees or less of angle, whereas a female's is 100 degrees or more.

A typical bone has a dense and tough outer layer. Next is a layer of spongy bone, which lighter and slightly flexible. In the middle of some bones is jelly-like bone.

How the system helps to maintain homeostasis-

The skeletal system helps maintain homeostasis by producing new red blood cells as the old ones die off. It also helps maintain the level of calcium in the blood stream.

How the systems work with the other systems-

The skeletal system is made up of cartilage and calcified bone that work together. They help the process of movement happen in a smoother manner. The calcified bones of your skeleton also work with the circulatory system. Marrow inside of your bones helps produce the cells inside of you blood.

A problem that can occur with this system and how it affects life (A disease)-

our skeletal system is prone to injury, wear and tear, infections, tumor and metabolic conditions that damage bone and can become life threatening. Listed below are some common skeletal system diseases.