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Unformatted text preview: October 1, 2009 3 SECTIONS OF THE BRAIN Hindbrain Midbrain Forebrain HINDBRAIN Where the spinal cord joins the brain. The hindbrain controls vital functions Oldest part of the brain Made of- Reticular activating system- cerebellum- Pons- medulla oblongata RETICULAR ACTIVATING SYSTEM (R.A.S.) Main function is to maintain consciousness- involved with arousal and keeping the brain awake Located at the center of the brain stem between the Medulla Oblongata and the Mesencephalon The R.A.S. also screens incoming information, filtering out irrelevant information Fibers going through this part of the brain control respiration and cardiac rhythms Damage to the R.A.S. can cause coma- the person is still alive, but the brain is functioning at its lowest stage of alertness (a severe injury to the head, seizures, infections involving the brain, brain damage caused by a lack of oxygen for too long, an overdose of medicine or other drugs, a stroke) Imbalance in the R.A.S. linked to ADHD and Alzheimer’s disease CEREBELLUM Coordinate body movements, control balance and posture The cerebellum receives information about the position of body parts...
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This note was uploaded on 02/13/2010 for the course EGR 012 taught by Professor Witfield during the Spring '10 term at Aarhus Universitet.
- Spring '10