To discuss:
The definitions of pain and nociceptor.
Introduction:
Structures that are specialized for the detection of a stimulus, such as pain and heat, are referred to as a sensory receptor. Such receptors can either be real sense organs or simple nerve endings. A sensory receptor converts energy from one forsm to another. It is involved in the conversion of various forms of stimulus energy, including sound, light, heat, vibration, and touch into nerve signals. Receptors can be classified into three categories based on the stimulus origin, modality, and its location in the body. Based on the location of receptors in the body, receptors can be broadly classified into general (somesthetic, somatosensory) and special senses.
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