Page 274 - (DK) I Can’t Believe It! 2
P. 274

272
     Body talk




                          If the DNA from ONE CELL was stretched out, it would be about 6.5 ft (2 m) in length. That’s about as tall as an adult man.
         WOW,                                        Every minute, you:
       THAT’S                                        •  produce 120 million
                                 HANG ON A     MINUTE  •  make 180 tiny
                                                     red blood cells in your
      L O   N   G!                                   bone marrow
                                                     •  shed about
                                                     40,000 skin cells


                                                     eye movements
                                                     •  have 70 heartbeats

                                                     •  take 20 breaths
                                                     •  process 2.1 pints
                                                     your kidneys, making
                                                     0.002 pints (1 ml) of urine
                              THE                    (1,200 ml) of blood in
                                                               STUFF

                              The SMALLEST
                              bone in your body
                              is the size of a
                              grain of rice. It    Rice  Stirrup
           The DIGESTIVE      is called the   grain                    Stirrup shown actual
             TRACT is a       STIRRUP                                   size: 0.12 x 0.1 in
            30 ft             and is one of three                         (3 x 2.5 mm)
              (9 m)           bones in the ear.
            tube running
           from your mouth
           to your bottom.
            That’s almost                 A fingernail would grow about 90 ft (28 m) if it was never cut.
            the length of a
             school bus.                  That’s about the length of four elephants.
   The longest bone in the body, the femur (thigh bone) is one-quarter of your height.










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