Cool Picture Of The Day - Sept / 04 / 2011

A cerebral hemisphere is one of the two regions of the eutherian brain that are delineated by the median plane, (medial longitudinal fissure).

The brain can thus be described as being divided into left and right cerebral hemispheres. Each of these hemispheres has an outer layer of grey matter called the cerebral cortex that is supported by an inner layer of white matter.

The hemispheres are linked by the corpus callosum, a very large bundle of nerve fibers, and also by other smaller commissures, including the anterior commissure, posterior commissure, and hippocampal commissure.

These commissures transfer information between the two hemispheres to coordinate localized functions. The architecture, types of cells, types of neurotransmitters and receptor subtypes are all distributed among the two hemispheres in a markedly asymmetric fashion. However, while some of these hemispheric distribution differences are consistent across human beings, or even across some species, many observable distribution differences vary from individual to individual within a given species.

You can take your Hemispheric Dominance Inventory Test on that link. I'm a left brained person. What about you?

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With the help of Bogdan Mandru