Know ye brain.................
The forebrain is the largest and most highly
developed part
of the human brain: it consists primarily
of the cerebrum (2) and the structures hidden beneath it (see "The Inner Brain").
When
people see pictures of the brain it is usually the cerebrum that they
notice. The cerebrum sits at the topmost part of
the brain and is the source of
intellectual activities. It holds your memories, allows you to plan,
enables you to imagine
and think. It allows you to recognize
friends, read books, and play games.
The
cerebrum is split into two halves (hemispheres) by a deep fissure.
Despite the split, the two cerebral hemispheres communicate
with each other through a thick tract of
nerve fibers that lies at the base of this fissure. Although the two
hemispheres
seem to be mirror images of each other,
they are different. For instance, the ability to form words seems to lie
primarily
in the left hemisphere, while the right
hemisphere seems to control many abstract reasoning skills.
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