Why does your stomach rumble?
        
        
          
            Human body
          
        
        
          Your body needs food to keep it working.
        
        
          But before it can use the food, it breaks
        
        
          it into tiny pieces, which seep into your
        
        
          blood. This is called digestion.
        
        
          
            Mouth
          
        
        
          In your mouth,
        
        
          your teeth chop up
        
        
          and chew your food. Your spit helps
        
        
          to break food down and makes it easy
        
        
          to swallow. When you swallow,
        
        
          your food goes down a tube
        
        
          in your throat and into
        
        
          your stomach.
        
        
          Eating and digestion
        
        
          This photograph of
        
        
          part of the stomach
        
        
          lining was taken
        
        
          through a microscope.
        
        
          
            Stomach
          
        
        
          Your stomach is like a
        
        
          stretchy bag that fills with
        
        
          food. Inside, your food is
        
        
          churned up and mixed with
        
        
          stomach juices. They break
        
        
          your food down into a thick
        
        
          soup-like mixture.
        
        
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          y
        
        
          .
        
        
          .
        
        
          .
        
        
          
            Become
          
        
        
          
            an expert
          
        
        
          
            222-223
          
        
        
          All
        
        
          living things
        
        
          
            234-235
          
        
        
          What
        
        
          is energy?
        
        
          This tube diagram is not
        
        
          the same shape as the
        
        
          tubes inside your body.
        
        
          
            Teeth
          
        
        
          
            Tongue