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Assignment The Brain - Running head THE BRAIN 1 The Brain...

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Running head: THE BRAIN 1 The Brain Kim Waddell PSY/ 240 December 12, 2010 Diane Pascoe
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THE BRAIN 2 The Brain The human brain is comprised of three main sections known as the forebrain, midbrain and hindbrain which connect to the central nervous system via the spinal cord (Pinel, 2007). Further dissection allows us to break these three sections into the five main structures of the brain. The forebrain houses two of these main structures which include the telencephalon and diencephalon. The midbrain is where the structure known as the mesencephalon is located and the hindbrain, like the forebrain, houses the final two structures known as the metencephalon and myelencephalon (Pinel, 2007). The myelencephalon, also known as the medulla, is located in the hindbrain. This structure acts as a signal carrier from the brain to other areas of the body (Pinel, 2007). The myelencephalon, or medulla, is responsible for reticular formation. Reticular formation is comprised of a complex network of white and grey matter which aids the smooth transition between descending and ascending signals of the central nervous system (Pinel, 2007). Reticular formation is believed to play a role in arousal but is also important to various other functions of the body including sleep, body movement, and muscle tone. In addition, reticular formation also
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