sensory receptors
neural structures that respond to stimuli (forms of energy)
simple receptors
modified dendritic ends of sensory neurons
complex receptors
localized collections of cells associated with special senses
mechanoreceptors
receptors that respond to mechanical force
thermoreceptors
receptors that respond to heat energy
photreceptors
receptors that respond to light energy
nociceptors
receptors that respond to pain
exteroceptors
receptors that respond to stimuli outside of the body
introceptors
receptors that respond to stimuli inside the body
propricoeptors
receptors that respond to stimuli with muscles, joints, tendons, ligaments, and connective tissues