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Incredible Human Machine

People push their bodies to the limit in a variety of ways. Yet, when you consider that it takes as many as 100 muscles just to speak simple words, even everyday acts seem pretty impressive. This month, National Geographic takes a look at how our truly incredible bodies enable us to do the ordinary and the extraordinary in Incredible Human Machine.

When it comes to making music, the most impressive instrument might be the human vocal cords. These thin membranes are what enable speech and song. The vocal cords cover our throats just above the windpipe. As our breath passes through them, they open, close, and vibrate, creating the sounds that we hear. One person who puts his vocal cords to the test on a regular basis is Aerosmith's lead singer Steven Tyler. In Incredible Human Machine, the National Geographic Channel will examine his remarkable set of vocal cords in real time during a concert.

Yet, abilities such as speech and song can be damaged by injuries or diseases like brain cancer. In the recent past, brain cancer was an almost certain death sentence. Even when brain cancer could be treated, treating it often came with the high price of brain damage. Doctors now have the power to beat this disease while protecting the remarkable skills that make the human body so amazing. Incredible Human Machine lets you watch as doctors perform brain surgery while the patient is still awake to ensure that the power of speech is preserved.

From recovering from injuries to simply walking around, our bodies possess endless abilities. Whether we're breaking records or just hanging out, we rely on 100 trillion cells functioning properly to live our lives. Watch the National Geographic Channel's Incredible Human Machine to see how they all fit together to make us who we are.

     
  1.

According to the article, what is incredible about the human body?

       
    (A) How it is able to cure serious diseases on its own.
    (B)

How its parts work together to allow many abilities.

    (C) How it is superior to modern technology.
    (D) How it enables everyone to sing beautifully.
       
  2.

The vocal cords function by ______.

       
    (A) allowing people to breathe through the windpipe
    (B) vibrating in response to music that is heard
    (C)

opening and vibrating as air moves past them

    (D) providing a thin membrane for a musical instrument
       
  3.

What was one of the negative effects of treating brain cancer in the past?

       
    (A)

Damage to physical abilities.

    (B) Being sentenced to death.
    (C) Expensive medical bills.
    (D) Patients waking up during surgery.
       
  4. Another way to say the phrase functioning properly in the fourth paragraph is ______.
       
    (A) happening constantly
    (B) thinking quickly
    (C)

working well

    (D) moving correctly
       
           
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  Answers : 1) B    2) C    3) A    4) C
 
 
 
 
 

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