Musculoskeletal system

• STRUCTURE OF SKELETON

  • Provides frame for muscle to provide movement
  • Provides point of attachment for muscles
• MUSCLES

  • Contract and pull bones
  • Are connected to bones by tendons
  • Movement occurs at joint
  • A joint is where 2 or more bones meet
• BONES

  • Short bones are for fine controlled movement
  • Long bones are for gross movement
  • Flat bones protect vital organs
  • Cranium protects brain
  • Sternum protects heart
  • Ribs protect lungs
• FUNCTIONS OF SKELETON - SPM SPM B

  • S - Support - rigid bones keep body upright, hold muscles and organs in place
  • P - Protection - flat bones protect vital organs
  • M - Movement - bones provide anchor points for muscles, long bones work as levers to allow movement
  • S - Structural shape - bones give general shape
  • P - Points of attachment - bones provide anchor points for muscles
  • M - Mineral storage - hold minerals - phosphorus and calcium
  • B - Blood cell production - red and white blood cells are produced in bone marrow