Visceral sense, also referred to as the inner sense, is a concept derived from the Latin term "viscus", meaning organ. It encompasses the ability to perceive and recognize internal bodily sensations and feelings, such as hunger, thirst, and pain. Although visceral sense is already a concise term for this phenomenon, there are several other synonymous expressions that can be used to describe this aspect of human perception. Terms like "gut instinct", "intuitive response" or "instinctive feeling" can convey a similar meaning, emphasizing the spontaneous, deep-rooted nature of these reactions. In essence, these synonyms all indicate an innate understanding and recognition of bodily sensations that arise from within us, guiding our behaviors and decisions.