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Nervous System


Right Brain, Left Brain (Grades 4 to 6)


Right Brain, Left Brain (Grades 4 to 6)
Reading Level
     edHelper's suggested reading level:   grades 4 to 6
     Flesch-Kincaid grade level:   6.31

Vocabulary
     challenging words:    epilepsy, logical, tumor, injury, therefore, cerebral, based, reading, wide-awake, writing, general, stimulate, verbal, incredible, certain, pain


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Right Brain, Left Brain
By Jennifer Kenny
  

1     How do you write, cut, draw, or sew? Are you left-handed or right-handed? By age three, most people know the answer to that. If you are right-handed, your left hemisphere of the brain is better developed. If you are left-handed, your right hemisphere of the brain is more dominant. Nine out of ten people are right-handed.
 
2     The dominant hemisphere controls the person's ability to speak. Oddly enough, if a person is in an accident and loses the ability to speak because of injury to that part of the brain, the other hemisphere will gradually take over that task to some degree.
 
3     The movements of the left side of the body are controlled by the right side of the brain. The movements of the right side of the body are controlled by the left side of the brain. Sometimes, though, one side of the brain is more developed for a particular activity. This doesn't mean that both sides aren't involved in the task; it just means that a certain side might be dominant for that task. No matter what, the two sides pass signals and work as one control center.

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