Body Systems- PBL

By: Arhan & Alex P.

Skeletal Systems

Your Skeletal system is all of the bones in the body and the tissues such as tendons, ligaments and cartilage that connect them. Your teeth are also considered part of yourskeletal system but they are not counted as bones.Your skeleton also helps protect your internal organs and fragile body tissues. The brain, eyes, heart, lungs and spinal cord are all protected by your skeleton. Your cranium (skull) protects your brain and eyes, the ribs protect your heart and lungs and your vertebrae (spine, backbones) protect your spinal cord.


The tendency of a system, especially the physiological system of higher

animals, to maintain internal stability, owing to the coordinated response of

its parts to any situation or stimulus that would tend to disturb its normal

condition or function.


Your skeletal system does not work alone. Muscles connect to your skeleton and they contract and move the skeleton along. Your 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. Both red blood cells and white blood cells are created in your bones.