Virtual Tour Answer Sheet by HC12110503583

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									Answer Sheet for Virtual Tour activity:
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  1. How many organ systems does the human body have?            11

     Circulatory System (heart, blood, vessels) 

     Respiratory System (nose, trachea, lungs)
     Immune System (many types of protein, cells, organs, tissues) 

     Skeletal System (bones)
     Excretory System (lungs, large intestine, kidneys) 

     Urinary System (bladder, kidneys)
     Muscular System (muscles) 

     Endocrine System (glands)
     Digestive System (mouth, esophagus, stomach, intestines) 

     Nervous System (brain, spinal cord, nerves)
     Reproductive System (male and female reproductive organs)


  2. Describe one way organ systems work together.

     There are many different answers to this question. One example – the lungs take in
     oxygen when we breathe and then the blood is oxygenated as it passes through the
     heart (circulatory and respiratory systems working together).

  3. How many gallons of blood does the heart pump every day?

     2000 gallons per day (according to National Geographic)

  4. How many miles of nerves does the human body have?

     45 miles (according to BBC)

The Brain
  1. In what body system does the brain belong?

     The Nervous System

  2. Can listening to Mozart make you smarter?
     While you can learn a lot about music from listening to Mozart, there is no scientific
     evidence that it will make you smarter.

  3. Do we learn through subliminal messages?

     While there are many claims that flashing quick messages during movies or other
     visual media and inserting hidden messages inside audio recordings have an effect on
     people’s behavior, there has been no proof of this!

  4. What are the parts of the brain and what do they do?

     The Cerebrum – the thinking part and controls the voluntary muscles
     The Cerebellum – controls balance, movement and coordination
     The Brain Stem – controls the involuntary muscles (breathing, digesting, heart)
     The Pituitary Glands – controls growth
     The Hypothalamus – controls temperature


The Heart
  1. In what body system does the heart belong?

     The circulatory system

  2. Tell one difference between a normal fetal heart rate and a normal adult heart
     rate.

     An infant heart and a fetal heart beat faster than an adult heart.

  3. Name the four chambers of the heart.

     Right Atrium
     Left Atrium
     Right Ventricle
     Left Ventricle


The Lungs
  1. In what body system do the lungs belong?

     The respiratory system

  2. What are the air sacs called inside the lungs and what are they for?

     Alveoli – this is wear gas exchange occurs (oxygen)

  3. How does asthma affect breathing and the lungs?
    The airways are chronically inflamed – irritated and swollen. During an asthma attack,
    it is difficult for air to pass through the constricted airways making it hard to breath.

  4. Why do we cough?

    We cough to expel (or get rid of) foreign particles in our airways.

  5. What are snot and boogers?

    They are dirt particles that were filtered out of the air we breath by the nose hairs and
    mucous.


The Stomach
  1. In what body system does the stomach belong?

    The digestive system

  2. Why does your stomach gurgle?

    Your stomach gurgles when the air, food, and digestive fluids are sloshed around
    during digestion.

  3. What happens when your food enters the stomach?

    Digestive fluids begin to break down the food into easily absorbable (very small)
    pieces. By the time it leaves the stomach your food no longer resembles food!

								
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