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  2. Secondary somatosensory cortex - Wikipedia

    en.wikipedia.org/wiki/Secondary_somatosensory_cortex

    The human secondary somatosensory cortex (S2, SII) is a region of sensory cortex in the parietal operculum on the ceiling of the lateral sulcus. Region S2 was first described by Adrian in 1940, who found that feeling in cats' feet was not only represented in the primary somatosensory cortex (S1) but also in a second region adjacent to S1. [1]

  3. Somatosensory system - Wikipedia

    en.wikipedia.org/wiki/Somatosensory_system

    Region S2 (secondary somatosensory cortex) divides into Area S2 and parietal ventral area. Area S2 is involved with specific touch perception and is thus integrally linked with the amygdala and hippocampus to encode and reinforce memories. Parietal ventral area is the somatosensory relay to the premotor cortex and somatosensory memory hub, BA5.

  4. Sensory cortex - Wikipedia

    en.wikipedia.org/wiki/Sensory_cortex

    The sensory cortex can refer sometimes to the primary somatosensory cortex, or it can be used as a term for the primary and secondary cortices of the different senses (two cortices each, on left and right hemisphere): the visual cortex on the occipital lobes, the auditory cortex on the temporal lobes, the primary olfactory cortex on the uncus of the piriform region of the temporal lobes, the ...

  5. Somatotopic arrangement - Wikipedia

    en.wikipedia.org/wiki/Somatotopic_arrangement

    Areas such as the appendages, digits, penis, [2] and face can draw their sensory locations upon the somatosensory cortex. The areas which are finely controlled (e.g., the digits) have larger portions of the somatosensory cortex whereas areas which are coarsely controlled (e.g., the trunk) have smaller portions.

  6. Primary somatosensory cortex - Wikipedia

    en.wikipedia.org/wiki/Primary_somatosensory_cortex

    In neuroanatomy, the primary somatosensory cortex is located in the postcentral gyrus of the brain's parietal lobe, and is part of the somatosensory system. It was initially defined from surface stimulation studies of Wilder Penfield , and parallel surface potential studies of Bard, Woolsey, and Marshall.

  7. Sensorimotor network - Wikipedia

    en.wikipedia.org/wiki/Sensorimotor_network

    The sensorimotor network (SMN), also known as somatomotor network, is a large-scale brain network that primarily includes somatosensory (postcentral gyrus) and motor (precentral gyrus) regions and extends to the supplementary motor areas (SMA). [1] The auditory cortex may also be included, [2] as well as the visual cortex. [3]

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  9. Dermatome (anatomy) - Wikipedia

    en.wikipedia.org/wiki/Dermatome_(anatomy)

    S2 – At the midpoint of the popliteal fossa. S3 – Over the tuberosity of the ischium or intragluteal fold; S4 and S5 – In the perianal area, less than one cm lateral to the mucocutaneous zone; Following is a list of cranial nerves responsible for sensation from the face: