Topic summary
Exteroreceptors

Extracted from the Wikipedia article Sensory neuron.
External receptors
External receptors that respond to stimuli from outside the body are called exteroreceptors. Exteroreceptors include chemoreceptors such as olfactory receptors (smell), taste receptors, photoreceptors (vision), thermoreceptors (temperature), nociceptors (pain), hair cells (hearing and balance). There are a number of other different mechanoreceptors for touch and proprioception (stretch, distortion and stress).