Parietal Region Lower

The parietal region (lat. regio parietalis - internal area), sometimes called pars medialis or inv in Latin - the lowest of the parietal lobes, has the shape of a quadrangular plate with a hole in the parietal bone. Most of this lobe in humans is a purely visual area of ​​the brain and takes part, along with the occipital lobes, in the analysis of visual impressions, which is associated with a system of special nerve fibers passing through the middle ear cavity to the organs of vision, as well as with associative systems. The thalamus is oblong, massive and consists of the medial surface of the trunk. The thalamus corresponds to 2/3 of the fibers in the number of nerve fibers; entering the visual centers of the cerebral cortex, the remaining fibers fall on the frontal lobe (these are the posterior and medial parts of the frontal region) and the occipital lobe.

The cortex of the parietal lobe is the lower, anterior part of the parietal region corresponds to the posterior sections of the central sulcus with a horizontal anterior slit-like section along the zygomatic process of the temporal bone and 2-3 posterior paracentral lobes. It's a smooth gray ball, gradually

Parietal Region of the Inferior - regio parietalis infinior

The parietal region of the inferior border lies posterior and slightly below the occipital region and limits the crown posteriorly. It consists of two superficial and one deep plates. The anterior surface of the inferior surface is represented by three large folds: the superior sagittal trace, the posterior sagittal trace, and the lateral trace. The greater occipital protuberance is projected onto the suture in the form of a protrusion. There are suboccipital, subtubercular, mastoid, occipito-parietal, squamous and supratubercular regions. The most important part of this region is the pyramidal sinus. The apex of the optic hillocks extends downwards, which rises upward and is called the third ventricle.