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Skeletal System - Coggle Diagram

- - - - The bones form a framework to support the body and give it shape.
      - The different lengths and thicknesses of the bones make up the unique size and shape of a body
  - - - The skeleton protects vital organs such as the brain, heart and lungs.
      - For example, the cranium protects the brain, the ribs protect the heart and lungs, the pelvis protects the abdomen, and the vertebrae protects the spinal cord
    - - Movement
        
        The skeleton allows the body to create movement.
        
        Muscles are attached to bones.
        
        The muscles contract and pull on the bones to create movement.
    - - Blood cell production
        
        The bones produce blood.
        
        Blood cells are made in the bone marrow of long bones such as the femur, humerus and ribs.
        
        The bone marrow of a human adult produces all of the red blood cells, some of the white cells, and all of the platelets in the body.
- - - - They are significantly longer than they are wide.
      - They are responsible for making a large range of movement and act as levers.
      - Examples include the femur, humerus, tibia, fibula, metacarpals, metatarsals and phalanges.
      - Flat bones
        
        They are normally flat and have a large surface area.
        
        Their large surface provides areas for muscles to attach to.
        
        They are responsible for protecting the organs.
        
        Examples include the cranium, scapula and sternum.
      - Irregular bones
        
        They provide protection and support.
        
        They are specially shaped to perform certain functions.
        
        Examples include the vertebrae in the back for protecting the spinal cord.