Postcentral gyrus

The postcentral gyrus or posterior central gyrus (lat. g. postcentralis) is a part of the cerebral cortex, which is located in the occipital lobe of the cerebral hemispheres. It is one of the largest convolutions of the cerebral cortex and occupies about 20% of the entire surface of the cortex.

The postcentral gyrus is part of the parietal lobe, which is responsible for the perception and analysis of information related to touch and the sense of body position in space. It is also involved in the processing of visual information, especially those aspects associated with determining the shape and size of objects, as well as face recognition and speech recognition.

The postcentral gyrus cortex contains many important centers, such as the speech recognition center, the visual imagery center, and the sensory processing center. In addition, in this area there are centers responsible for coordination of movements, control of balance and orientation in space.

Dysfunction of the postcentral gyrus can lead to various disorders in the functioning of the brain, including problems with speech, visual impairment, motor coordination, as well as a decrease in the ability to learn and remember information.

Gyrus P. Located in the cerebral hemisphere, it is involved in the organization of movements and the implementation of the motor analyzer. The upper border of the P. is projected onto the upper part of the parietal lobule from below; the lower sections of the P, involved in the organization of articulation and facial expressions, are adjacent to the anterior part of the middle frontal gyrus (fibrous capsule). On the medial side, the P is covered by the upper part of the parietal gyrus and is delimited from it by the gelatinous substance of the brain, penetrated by the fibers of the commissural callosal tracts and conductors. In depressed places, the medial (paracentral) cell layer of the spongy part of the cortex of the tongue and the anterior part of the right hemisphere approach it.