The lateral surface is convex in adaptation to the concavity of the corresponding half of the vault of the cranium.
When the cerebrum is viewed from the lateral aspect, each cerebral hemisphere has the appearance, in which, three somewhat pointed ends can be recognised. These pointed ends are the poles of the cerebral cortex. These poles, which are also named in relation to the cranial bones, are the:
frontal pole – anteriorly
occipital pole – posteriorly
temporal pole – lying between the frontal and occipital poles, and points forwards and somewhat downwards.
The insula can be seen only if two lobes are pulled apart or removed.
A lateral view of the human brain is the best perspective from which to appreciate the lobes of the cerebral hemisphere.
Each hemisphere is conventionally divided into four lobes, named for the bones of the skull that overlie them:
The central sulcus
The lateral sulcus
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