Topics: Brain, Central nervous system, Nervous system Pages: 1 (338 words) Published: May 22, 2013
The Human Brain
The human brain is one of the most complex organs in your body, with about 50-100 billlion neurons that interact with eachother. The neirons act as carrying cells that "carry" messages through a big process. It has other nicknames such as the "Master Organ" of your body which is referring it has the most power over your whole body, mainly because the brain takes in all of the information. In humans the nervous system is divided intto CNS or the central nervous system and it is made up of the brain and spinal cord. The spinal cord is attached to the brain but people often know that it is the bone that goes down the back of you body from the waist all the way up to the brain. The structures of the brain inside of the skull is the cerebrum which is the large gray lumpy part of the brain. It is covered by strong membranes called meninges. The cerebrum is the largest part of the brain and it is responsible for consiousness and it is divided into two halves. Specific parts of the are often responsible for certain thinngs that go on inside of your head. At the center of the brain you can find the Thalamus and hypothalamus which end up forming the Diencephalon. The pitituary gland is called the master gland because it helps to maintain many important hormones. At the base of you brain you can find the cerebellum and the brain stem. TRhe cerebellum coordinates muscle functions such as maiting normal muscle tone and the brain stem is formed by the midbrain, the pons, and something called the mendula oblongata. The spinal cord is aalso a continuation of the brain stem that runs down the vertebre of the spine. The reason that people nowadays no so much about brains is because we have technolegy thaat lets us see inside of a human brain, this machine is called a MRI scanner and that stands for magnetic resonance imaging.
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