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  • Essay / The brain; The Key Organ of Humans - 830

    The BrainTo begin with, the human brain is the most complex part of the human body. It controls each organ thanks to a main functional unit which is the neurons. The outer part of the brain performs specific functions for each organ of the human body. The human brain is therefore the most important organ in the human body. A person can be left or right brained depending on how they act. The cerebellum is the three-lobed structure of the brain. The cerebellum helps ensure coordinated and smooth body movements. Examples would be balance, posture, coordination and voluntary movements. It also modifies the motor controls to make movements more precise and adaptive. The cerebellum is located at the back of the brain and contains 50% of the brain's total neurons. (Houghton, M. (2009)) Cerebrum means brain in Latin; the brain is the largest part of the brain as a whole. There are fifty to one hundred thousand neurons in the brain. The brain is divided into two hemispheres. The right hemisphere controls imagination and 3D form. The left side controls posture, reasoning, and numbering skills. Both hemispheres have a bridge made of bundles of fibers called body collusma. (Boeree, CG (2003)) The frontal lobe is involved in motor skills, including speech and cognitive functions. This is why the author considers the brain to be the most important organ in the human body. The frontal lobe is located just behind the forehead, at the top of the human head. The frontal lobe can also be called the “cerebral cortex”. The cerebral cortex is the seat of emotions and judgment related to sympathy and empathy. He can understand humor, puns and recognize sarcasm and irony. (Hartwig, KL (May 27, 2007))Motor Cor...... middle of paper ...... his brains » Retrieved November 19, 2013 from http://voices.yahoo.com/frontal-lobes - brain-functions-they-361802.htmlHoughton, M. (2009) “free dictionary-cerebellum” retrieved November 20, 2013 from http://www.thefreedictionary.com/cerebellumScott, T. (nd). “Occipital lobe – the brain made simple” Retrieved November 20, 2013 from http://brainmadesimple.com/occipital-lobe.htmlClinic, M. (2011). “Temporal Lobe Seizure” Retrieved November 20, 2013 from http://www.mayoclinic.com/health/temperory-lobe-seizure/DS00266Broca's Area. (nd). Retrieved November 25, 2013, from http://www.princeton.edu/archeny-tmee/wiki100k/docs/broca-s-area.html Somatosensory cortex. (nd). Accessed November 25, 2013 at http://www.dnalc.org/view/2115-Somatosensory-Cortex-.htmlThe motor cortex (nd). Retrieved November 26, 2013 from http://thebrain.mcgill.ca/flash/d/d_06_cr_mou.html