Support Systems by Zach
THE SKELETAL SYSTEM AND THE MUSCULAR SYSTEM
Skeletal System
The human body has 206 bones. Babies have about 305 bones. A vary importint bone is the backbone.Another name for the backbone is the spine.The skull protects the brain. The ribs protect the hart and lungs.Bones are held together by tissues.Bones are a vary importent part of the human body.
skeletal muscles
skeleton
muscles
pictures from word book student
Muscular System
The muscular system is made up of over 600 muscules.Muscules are a vary importent part of the human body.The muscules move the body. There are two diffrent kinds of muscules, involuntary and voluntary muscules. Skeletal muscules are attached to the bones. Without muscles you would not be able to move.Muscules work in only two ways they get longer or shorter.Muscules only move the body by pulling.