EXCRETORY SYSTEM
CORTEX
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Try wiggling each of your fingers one at a time. Now try wiggling each of your toes.
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Ask a friend to close their eyes. Using a random number of fingers (one to four), press down on the skin of your friend’s. Ask your friend to report how many fingers you are using. Repeat the same procedure on the palm or back of your friend’s hand.
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Try wiggling each of your fingers and toes at the same time.
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Press down hard on the skin of your friend forehead, let go and record how long it take for the skin to return to its natural colour.
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Detailed explanation-1: -The primary somatosensory cortex is responsible for processing somatic sensations. These sensations arise from receptors positioned throughout the body that are responsible for detecting touch, proprioception (i.e. the position of the body in space), nociception (i.e. pain), and temperature.
Detailed explanation-2: -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-3: -Anatomically speaking, the somatosensory system is a network of neurons that help humans recognize objects, discriminate textures, generate sensory-motor feedback and exchange social cues. Sensory neurons relay peripheral sensations such as pain, pressure, movement or temperature from the skin to the brain.
Detailed explanation-4: -The four major types of tactile mechanoreceptors include: Merkel’s disks, Meissner’s corpuscles, Ruffini endings, and Pacinian corpuscles. Merkel’s disk are slow-adapting, unencapsulated nerve endings that respond to light touch; they are present in the upper layers of skin that has hair or is glabrous. More items •08-Jun-2022