When the skin comes in communication with an hassle, receptors in the skin send signs to the spinal cord. The signal is then sent to the brain for proceed, and the individual begins to rub the affected area.
The main types of touch receptor are called thermoreceptors, chemical receptors, and mechanical receptors.
Thermoreceptors are like the thermometer notification for your skin receptors, designed to detect changes in the temperature of the outer skin layers.
Thus, When the skin comes in contact with an irritant, receptors in the skin send signs to the spinal cord.
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