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The Brain Essay

1635 words - 7 pages

From the beginning of time man’s actions were just as diverse as the ever-changing life conditions around him. For centuries man’s actions were unexplained and unquestionable. Indeed, the brain was not thoroughly explored and explained until the late 1600s. Up until then the human person was regarded by the essence of their soul.
Rene Descartes, a philosopher, began to explore the notions of the human “soul” and in 1637 wrote a book entitled Discourse on Method that explained his philosophy. In it he states his observations about how animals can move and react without the concept of a soul. This “soul” was actually the human brain and a little later, Thomas Willis, a scientist and member of the Oxford Circle, performed experiments to discover the real mechanism behind man’s actions -- the brain.
When the existence of the brain was first discovered not much was known about it. Through the last several centuries more and more research has been directed toward the brain, and the amount of knowledge about it has grown. But with all this research, how is it our brains make us who we are? What are the parts of the brain that help make it what it is? What dominant element has led to the human brain’s evolution? Indeed, these years of research have aroused more questions about the brain than revealed more about it. In order to understand the answers to any of these questions, you will need a comprehensible account of the different areas of the brain and their functions.
The brain is like a computer as all of its functions provide for one another and when an error occurs it affects the whole body. Also, just as a computer evolves by obtaining updated software, the brain has become more advanced through the centuries. “The human brain works with other parts to send messages back and forth and to allow movement of the body.” Therefore, like the brain of the human body, the brain of the computer keeps it going and running.
“The brain is made up of three central parts: the forebrain, midbrain, and hindbrain, which are then broken into other categories which makeup communication as a whole.” “The brain through the ages has been declared to have a life of its own as it shapes the functions of our bodies.” “The brain integrates sensory information and directs motor responses” that allow us to perform various actions.”
The cerebrum, which controls thought and action, is the biggest part of the human brain. It is also very wrinkled and this feature is noted for the potential increased size of the brain and the number of neurons that help bring the brain’s commands back and forth to the body. It is divided into two halves: the left and right hemispheres. Often, the left hemisphere is associated with logic functions and the right hemisphere is associated with creative abilities. It is then divided further into four parts: the frontal, parietal, occipital, and temporal lobes.
The frontal lobe helps control reasoning, planning, parts of speech,...

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