Saturday, November 21, 2009
   
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What are you most thankful for?


Human Body

Subject Index - Health

 

 

 

 

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The human body is made up of a head, neck, torso, two arms and two legs.  The average height of an adult human is about 5 to 6 feet tall.  The human body is made to stand erect, walk on two feet, use the arms to carry and lift, and has opposable thumbs (able to grasp).

 


The adult body is made up of:

100 trillion cells
206 bones
600 muscles
22 internal organs
 
 
 

There are many systems in the human body:
 
 
 
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, esophogus, stomach, intestines)
Nervous System (brain, spinal cord, nerves)
Reproductive System (male and female reproductive organs) 
                                                                                            

 

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