Merkel’s disks are densely distributed in the fingertips and lips. They are slow-adapting, unencapsulated nerve endings, and they respond to light touch. Light touch, also known as discriminative touch, is a light pressure that allows the location of a stimulus to be pinpointed.
Four major types of encapsulated mechanoreceptors are specialized to provide information to the central nervous system about touch, pressure, vibration, and cutaneous tension: Meissner’s corpuscles, Pacinian corpuscles, Merkel’s disks, and Ruffini’s corpuscle
Photoreceptors detect light during vision. More specific examples of sensory receptors are baroreceptors, propioceptors, hygroreceptors, and osmoreceptor
Terms in this set (5)
- chemoreceptors. stimulated by changes in the chemical concentration of substances.
- pain receptors. stimulated by tissue damage.
- thermoreceptors. stimulated by changes in temperature.
- mechanoreceptors. stimulated by changes in pressure or movement.
- photoreceptors. stimulated by light energy.