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Occipital Lobe

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by

amber dickerson

on 15 November 2012

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Transcript of Occipital Lobe

Occipital Lobe The Brain Functions More Facts What Happens To a Damage Occipital Lobe The Occipital is located below the Parietal Lobe, and sits on what seperates it from the Cerebellum. The function of the occipital lobe is to allow us to see. It allows us to see color and to identify objects. It doesn't allow us just to see but to be able to tell the difference between objects. The Occipital Lobe begins to function as soon as an infant is born. As the child grows older the Occipital Lobe becomes more and more acute and they are able to interpret vision better. The Occipital lobe is the hardest part of the head. The Occipital Lobe is not entirely prone to injury do to the location in the back of the head The phrase “ I have eyes at the back of my head” is related to the occipital lobe. Occipital sounds like optical!! Average adult weight of the human brain is about 1,300-1,400 grams or 3lb. only 2% of the total body weight of a 150 pound person One case is occipital lobe epilepsy, which cause seizures, hallucination, seeing the same object over and over again, constant blinking or eye movement, and exceptional eye pain Fun Facts The brain is about 2% of an adult's weight but contains about 20% of the body's blood supply due to its high oxygen requirement. At normal temperatures, brain cells can begin to die in as little as three or four minutes without oxygen. The brain contains no pain receptors and so cannot feel pain. It does receive nerve impulses from pain receptors in other areas of the body, however, causing us to feel pain in those areas. Fact The surface of a living brain is a pink-grey color, while the underneath is lighter. The surface is filled with "grey matter" that contains the cell bodies of the neurons. The cell body of a neuron contains its nucleus. The paler "white matter" is where the axons of the neurons are located. These extensions from the cell body are covered in a fatty material called myelin, which is made by Schwann cells. Myelin speeds up the conduction of the nerve impulse.
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