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Human body systems

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  • Air enters our body through our ______ or mouth when we breathe in.
    Nostrils
  • Our lungs take in _______ from the air and pass it to the blood. ______ _______ passes from the blood to the lungs.
    oxygen; carbon dioxide
  • What does the digestive system do?
    It helps our body get the nutrients we need to survive.
  • The _____ ________ absorbs water from the food the body can't digest.
    large intestine
  • Nutrients from the food pass through the _____ ______ and into the blood.
    the small intestine
  • Waste products and ______ go down to the ureters to the bladder.
    Urine
  • Food travels down a tube called the _______ to the stomach.
    Esophagus
  • What breaks food into small pieces in our mouths?
    the teeth
  • What is the final part of the large intestine?
    The rectum
  • What dissolves the food in the stomach?
    The acid
  • What does the respiratory system allow us to do?
    It allows us to breathe.
  • What does the excretory system do?
    The excretory system helps your body eliminate waste products and water.
  • What is the liquid in our mouth that mixes with the food?
    Saliva
  • When we breathe, the air travels down a tube called the ______ to the lungs.
    The trachea
  • The ________ holds your urine until you go to the toilet.
    The bladder
  • The _________ contracts to push air out of the lungs.
    The diaphragm
  • _______ filter your blood and remove waste products.
    Kidneys
  • The _________ carries the urine out of the body.
    The urethra
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