What are the hemispheres of the brain?

Many people consider the brain to be one mass. At a direct view, however, it can be seen that in fact, there is a line in the middle of a line that basically divides the brain into two halves. These halves are known as hemispheres of the brain. Generally, the right hemisphere controls the left side of the body and vice versa. Each side of the brain also has certain brain processes that are mostly responsible for control. There are also several smaller sections called lobes that are associated with further specialization on each hemisphere. While brain hemispheres are different in some respects, they are connected and share information. For example, the nerve pulses needed to move the right hand usually come from the left side of the brain. Similarly, each side of the brain usually processes sensory information for the opposite side. For example, if the left leg is bitten by a dog, the left side of the brain will be sent to the impulses of the nerves in the leg.

someThe brain processes are also often predominantly, although not necessarily exclusively processed by each of the hemispheres. For example, the left hemisphere is generally responsible for the language and logical distribution of information, while the right side is generally responsible for spatial awareness and evaluation of the overall situation based on less information. Damage caused on one hemisphere of the brain, for example in the case of a stroke, may obviously obvious these differentiation. For example, a stroke on the left hemisphere can leave a person who is unable to communicate clearly.

Brain hemispheres also contain separate specialized areas called lobes. Each lobe is generally responsible for other specialized processes. For example, the frontal lobe often dominates the control of emotions, while the occipital lobe is generally responsible for vision. While each hemisphere has the same number and type of lobes, experts believe that the lobes on each side may have slightly different roles in their dominant processes. This belief is based primarily on different Sym samplesPtom, which were observed when a particular lobe with the left hemisphere is damaged by versus when the same right hemispér's lobe is damaged.

Although brain hemispheres are physically separated and tend to have predominant control over different processes, they are not entirely independent. They are connected in the middle of a bundle of nerve fibers called corpus callosum. This allows the hemisphere of the brain to communicate and share information with each other, which is something they do regularly.