sense organ

A sense organ is an anatomical structure containing specialized receptor cells that convert specific forms of energy (light, sound, chemicals, pressure, temperature) into electrical signals (action potentials) transmitted to the nervous system for processing and conscious perception.

Major vertebrate sense organs include the eyes (vision), ears (hearing and balance), nose (olfaction), tongue/taste buds (gustation), and skin (touch, pressure, pain, temperature). Many animals also possess specialized organs for magnetoreception, electroreception, and infrared detection.

Sensory transduction is the conversion of a stimulus into a graded receptor potential by specialized sensory receptor cells. This process transforms diverse environmental signals into the uniform language of neural action potentials, enabling the nervous system to interpret and respond to the external world.