The Skeletal System Human Skeleton Purpose of bones

The Skeletal System

Human Skeleton • Purpose of bones: • • Determines _____ of your body ______ internal organs ______ attachment Produces ____ cells • Humans have _____ bones

Types of Bones 1. 2. 3. 4. 5. _____ bones ___________ bones

Types of Joints • Firbous joints • _______ movement • Ex: sutures of skull • Cartilaginous Joints • Little movement, attached by ______ • Ex: ribs, spine • Synovial Joints • Freely ______ • ___ types of movement

Endoskeleton “_____ the body” Made of: • _______ skeleton – – Backbone Skull Ribs Sternum • ________ skeleton – everything else

Axial Skeleton Protects the ____ cord and vital _______

Vertebral Column • 33 bones • 7 ____ • 12 _____ • 5 _______ (fused) • 4 _______ (fused) aka “tailbone”

Ribs and Sternum • Ribs 1 -7: _____ Ribs • attach to sternum • Ribs 8 -10: ______ Ribs • attach to cartilage of rib 7 • Ribs 11 -12: ____ Ribs • have no front attachment

The Skull • Protects your ______ and spinal cord • Made of: – 8 _____ bones – 14 ____ bones

Appendicular Skeleton • ______ bones

6 Sections of Appendicular Skeleton 1. 2. 3. 4. 5. 6. ______ _____

The Muscular SYstem

Types of Muscles • _____ Muscle • attached to bones • voluntary movement • ______ Muscle • form the walls of the heart • involuntary movement • ______ Muscle • walls of hollow structures (veins, bladder, stomach, etc. ) • involuntary movement