Parietal lobe

Lobus parietalis

NervousOrgansHeadLeft and right

View left in 3D View right in 3D

What it is
Lies behind the central sulcus and above the lateral fissure, reaching back to the parieto-occipital sulcus under the parietal bone.
Function
Receives touch, pain, temperature and limb position (primary somatosensory cortex in the postcentral gyrus) and builds the spatial map used for reaching, attention and reading.
Size
About 5-6 cm front to back at the vertex
Clinical note
Right parietal strokes often cause hemispatial neglect: the patient ignores the left side of space, e.g. eats only from the right half of the plate.