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==Introduction==

==Introduction==

The ''forebrain (proencephalon)'' is the largest part of the brain, most of which is ''cerebrum''. Other important structures found in the forebrain include the ''thalamus'' , the ''hypothalamus'' and the ''limbic system''. The cerebrum is divided into two cerebral hemispheres connected by a mass of white matter  known as the ''corpus callosum''. Each hemisphere is split into four lobes; the ''frontal'', ''parietal'', ''occipital''  and ''temporal'' lobes. The surface of each hemisphere is made up of grey matter known as the ''cerebral cortex'' and is folded to increase the surface area available within the skull. The cortex has roles within perception, memory and all higher thought processes. Inside the cortex is the ''white matter'', within which are a number of nuclei (grey matter), known as the ''basal nuclei''. The basal nuclei receive information from the cortex to regulate skeletal movement and other higher motor functions.

The ''forebrain (proencephalon)'' is the largest part of the brain, most of which is ''cerebrum''. Other important structures found in the forebrain include the ''thalamus'' , the ''hypothalamus'' and the ''limbic system''. The cerebrum is divided into two cerebral hemispheres connected by a mass of white matter  known as the ''corpus callosum''. Each hemisphere is split into four lobes; the ''frontal'', ''parietal'', ''occipital''  and ''temporal'' lobes. The surface of each hemisphere is made up of grey matter known as the ''cerebral cortex'' and is folded to increase the surface area available within the skull. The cortex has roles within perception, memory and all higher thought processes. Inside the cortex is the ''white matter'', within which are a number of nuclei (grey matter), known as the ''basal nuclei''. The basal nuclei receive information from the cortex to regulate skeletal movement and other higher motor functions.

The olfactory bulb is responsible for olfaction and the bulb itself is located within the rostral forebrain area, supported by the ''cribiform plate'' and the ''ethmoid bone''. The olfactory nerves are connected directly to the limbic system which is unique among mammalian sensory organs. As a result, olfaction plays a central role and is particularly important in regulating/stimulating sexual behaviour in many species.

The olfactory bulb is responsible for olfaction and the bulb itself is located within the rostral forebrain area, supported by the ''cribiform plate'' and the ''ethmoid bone''. The olfactory nerves are connected directly to the limbic system which is unique among mammalian sensory organs. As a result, olfaction plays a central role and is particularly important in regulating/stimulating sexual behaviour in many species.

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