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Have you ever listened to the news about the burning of a human head brain due to the heat caused his full memory stored in the brain ? ? ? ? ? The answer must be no . You know why ? ? ? Yes , because the brain is the most advanced system of highways Worldwide .

The human brain is an important component of human beings which contained therein 100miliar neurons (roughly equal to the number of stars in the Milky Way ) . Each neuron is able to receive and transmit neural impulses to thousands of other neural ( Robert L Solso , Otto H Machin , M.Kimberly Machin , 2008:39 ) . It was amazing ! ! ! ! ! ! ! !

The human brain is so complex as the brain itself will never be able to understand himself fully . If so , is it reasonable when we daydream discover how the mind works ? It could be because we have a lot of knowledge about the basic elements of the formation of the brain , namely neurons .

There are 4 main parts to the neuron ( Robert L Solso et al , 2008:40 ) :

1 . dendrites

2 . cell body

3 . axon

4 . Axons ended in terminal prasimpatik

Prasimpatik terminals and dendrites together to form synapses . Synapses have an important task because the synapse is chemical information exchanged from one neuron to other neurons in the form of chemical compounds called neurotransmitters .

At birth, the synaptic connections are not yet complete , however neuron is complete , no new neurons are formed after birth . In other words , the number of neurons in your brain you were born saan is the amount that you have throughout your life ( and you will lose a number of these neurons along the aging process or when you have an injury ) . The human brain is filled borne electrochemical activity , and the number of activated neurons can fire impulses in a second 1000 ( Robert L Solso et al , 2008:41 ) .

In the opinion of Gordon Bower ( in Solso et al , 2008:44 ) as a result of evolution , the human brain is surrounded by a shell of bone is hard as a rock , wrapped by layers of membranes are strong , and protected by a thick cerebral fluid . These shields make it difficult for scientists to observe human brain activity directly .

The human brain consists of two similar structures ( Solso et al , 2008 : 44 ) , the left and right hemispheres sereblum . Both hemispheres is enveloped by a layer of the cerebral cortex , the thin material and the kind of wet , gray , which was packed neuron cell bodies and axons short- veiled cerebral mylin.korteks has a thickness of about 1.5 - 5milimeter ( 1 / 4 inches ) . Had the cerebral cortex were taken and laid the extent of about 324 inches ( three times larger than the surface area of ​​the brain ) .

The cerebral cortex is divided into 4 main sections :

1 . frontal lobe

2 . temporal lobe

3 . parietal lobe

4 . occipital lobe

Although each lobe is associated with certain functions , the experts believe that most of the functions distributed throughout the brain . And function of our brains produce behavior that is in accordance with our environment ( Cosmides & Tooby in Solso et al , 2008: 61 )