What do we call the study of the human body?
        
        
          
            Human body
          
        
        
          
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          The greatest machine you’ll ever own is
        
        
          your body. It’s more complicated
        
        
          than any computer, it
        
        
          lasts for a lifetime, and
        
        
          it’s yours for free.
        
        
          
            Body parts
          
        
        
          Your body is made up
        
        
          of hundreds of different
        
        
          parts. You probably know
        
        
          the names of the bits you
        
        
          can see, but there are
        
        
          many more hidden
        
        
          deep inside you.
        
        
          
            Inside your body
          
        
        
          Doctors can see
        
        
          inside your body
        
        
          with special cameras.
        
        
          X-ray cameras take
        
        
          pictures of hard body
        
        
          parts like bones. Other
        
        
          cameras, called scanners,
        
        
          can see soft body parts.
        
        
          
            Two of everything
          
        
        
          Body parts often come
        
        
          in pairs. You have
        
        
          two feet, two eyes,
        
        
          two ears, two lungs,
        
        
          and so on. This
        
        
          means you have
        
        
          a handy spare in
        
        
          case one of them
        
        
          gets damaged.
        
        
          Your amazing body
        
        
          
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            Hair
          
        
        
          A chest X-ray shows the bones in
        
        
          your chest. The white shape in the
        
        
          middle is the heart.
        
        
          
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            Become
          
        
        
          
            an expert.
          
        
        
          
            106-107
          
        
        
          Bones
        
        
          and muscles
        
        
          
            116-117
          
        
        
          Eating
        
        
          and digestion
        
        
          
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