Somatosensory Cortex

This figure shows the primary somatosensory areas of the cerebral cortex is a graph which represent areas of the human cortex that recognize, organize and integrate the sensations that came from different parts of the body.As can be seen, not all parts of the body require the same "amount" of specialized cortex. 's somesthetic areas or sensitive areas are generally located in the posterior central gyrus. In this area are recorded sensations of heat, cold, touch, pressure, pain and proprioception (position sense and muscle balance). Each convolution receives sensations from the opposite side of the body. The disposition of the body parts is depicted in the convolution also reverse order, so that sensitive areas of the foot are located in the upper end of the cortex, while areas to the head at the lower end. Las motor areas are located in the upper central convolutions. Each convolution controls the activity of skeletal muscle which occupies the opposite side of the body. The various parts of the body represented in the convolution are arranged stepwise from top to bottom, so that the upper portion of the convolution controls movement opposite lower extremity, while the bottom of the convolution controls the head and neck. Some parts of the body such as hands and face, are more represented than others. This is due to the ability of such parties to perform delicate movements. The promoter area , also related to motor activity, occupies a position immediately preceding the precentral gyrus. Stimulation of this area results in the appearance of a series of movements of general nature, such as rotation of the head, trunk twists and general movements of the limbs. 's language areas , or areas of Broca, are located in the frontal lobe. A person skilled in the language areas are better developed in the left cerebral cortex. In a left-handed are more developed areas of language rights.The visual areas are located in the occipital lobe. In the left occipital lobe is recorded impulses originating in the left part of each eyeball, while the right occipital lobe is recorded impulses originating in the right part. 's auditory areas are located in the superior temporal gyrus . Each temporal lobe receives auditory impulses from both the left and the right ear. This is because a substantial number of neurons that transmit impulses hearing contralateral not follow the path, they are directed to the temporal lobe of the same side. primary olfactory area is located in the medial temporal lobe, and the area primary gustatory on the anterior posterior central gyrus of the parietal lobe. There are other areas called association areas . Those located in the parietal lobe involved in integrating sensory information from somatosensory areas, auditory, visual and gustatory. Parietal association areas correlate information about the various parts of the body. The association areas located in the posterior region of the temporal lobe are associated with sensitive data integration. The visual and auditory aphasia (inability to understand the spoken and written) may be associated with lesions of these associative areas. The association areas located in the anterior portion of the temporal lobe are associated with a variety of experiences, other than the visual. This anterior temporal lobe cortex has been called psychic because of their relationship with past experiences. higher activities such as discernment, reasoning and abstraction also depend on the cerebral cortex. The anterior part of the frontal lobe called the prefrontal area, is in relation to these mental processes characteristic of human beings. The cerebral cortex also exerts influence on inhibitory character bottoms central nervous system.