3. Skeletal System
• “Framework of the body”
• Works with muscle system
– Body movement
• JOBS
– Movement
– Protection (vital organs)
– Site of cell making (blood cells)
– Storage (minerals and protein)
4. Skeletal System
• KINDS OF BONES
– Long bones (femur, etc.)
– Short bones (wrist, ankle, etc.)
– Flat bones (ribs, skull, sternum, etc.)
5. Skeletal System
• Joint – point where two bones connect
• Tendons – connect muscles to bones
• Cartilage – a strong elastic material that lines
bones at the joint
• Ligaments – tissues that join bones or keep
organs in place
6. Skeletal System
• PROBLEMS
– Dislocation – bone is pushed out of the joint
– Fracture – break in the bone
– Sprain – sudden or violent strain of a joint
– Arthritis – swelling of joints caused by a breakdown of
bone or connective tissue
7.
8.
9.
10. Muscular system
• All muscles have the ability to contract (shorten)
and relax (extend)
• Kinds of Muscles
– Smooth (digestive system, blood vessels)
– Skeletal (muscles that help in body movement)
– Cardiac (muscles that make your heart work)
• Diseases of the Muscles
– Muscular dystrophy – wasting away of skeletal muscle
