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Human Body Systems (Skeletal system (Gives the body its shape, Works…

- - - - Connects the mouth to the stomach so that the food in the mouth can travel to the stomach
    - - Has digestive juices to digest break food down into simpler substances
    - - Has teeth to grind and cut food into smaller pieces to increase rate of digestion
      - Has tongue to make the food wet, allowing the food to pass through the gullet easier
    - - Has digestive juices to digest and break food down into simpler substances
      - Digested food will pass through the walls of the small intestine and will be absorbed into the bloodstream
    - - Absorbs water from undigested food
- - - - contains and transport substances to various parts of the body
    - - Transports blood to various parts of the body
    - - To pump blood to various parts of the body
- - - - Connects the nose to the lungs so that air in the nose can travel into the lungs
    - - Has air sacs to absorb oxygen into the bloodstream and to release carbon dioxide into the air in the lungs to be exhaled
    - - Has hairs and mucus to trap dust particles in the air we breathe in