In biological and psychological contexts, sense refers to the faculty or ability to perceive stimuli from the external or internal environment. These perceptions are mediated through specialized sensory organs and corresponding biological pathways that transduce physical energy—such as light, pressure, chemical concentrations, or temperature gradients—into electrochemical signals. The processing of these signals occurs within the nervous system, where the raw data is interpreted, integrated, and converted into conscious experience. Different senses involve distinct physiological mechanisms, with each system designed to detect specific ranges of energy or particles to allow for environmental awareness and interaction.