GENERAL HISTOLOGY

Detailed explanation-1: -The correct answer is C. (Somatosensory cortex). Somatosensory cortex is located in the parietal lobe and processes touch and movement. When a part of somatosensory cortex is stimulated, we feel sensation in the body that this area is devoted to.

Detailed explanation-2: -Direct stimulation of somatosensory cortex evokes sensory perceptions, and is thus a promising option for closing the loop. Before this can be implemented in humans it is necessary to evaluate how changes in stimulus parameters are perceived and the extent to which they can be discriminated.

Detailed explanation-3: -The primary somatosensory cortex (S1) plays a critical role in processing afferent somatosensory input and contributes to the integration of sensory and motor signals necessary for skilled movement.

Detailed explanation-4: -Answer-d. (d) Motor cortex is crucial for movement and bodily functions thereby stimulation of this part of the brain will cause movement of the lips and mouth.

Detailed explanation-5: -The primary somatosensory cortex is called S1. This area of the cerebral cortex receives sensory information from the somatic senses, plus proprioceptive senses and some visceral senses. It is located on the postcentral gyrus of the parietal lobe, as shown in Figure 4.3. 6.