|Identity of receptor||Size of receptor*||Type of skin where found||Speed of adaptation*||Adequate stimulus*|
|Merkel's disks||small, sharp borders||glabrous*||slow||pressure|
|Meissner's corpusles||small, sharp borders||glabrous||rapid||indentation|
|Ruffini corpuscles||large, diffuse borders||hairy + glabrous||slow||stretching|
|Pacinian corpuscles||large, diffuse borders||hairy + glabrous||rapid||vibration|
Adequate stimulus-the type of stimulus that the receptor is specialized to receive and respond to.
Glabrous skin-the hairless skin found on our palms and the soles of our feet. This skin has a higher density of receptors of a more complex range, which reflects the fact that we use these areas of our body to actively explore our surroundings and to discriminate tactile properties of objects we're interacting with.
Low-threshold mechanoreceptors-mechanoreceptors that respond to stimulus that is so light it doesn't threaten to damage the tissue around it. high-threshold mechanoreceptors respond to stimulation of higher intensity, and are a type of nociceptor.
Receptive field-the space of skin or tissue in which stimulation will elicit a response in the receptor. Smaller receptive fields make the receptor more sensitive to details.
Speed adaptation-slowly adapting mechanoreceptors continue to fire action potentials during sustained stimulation. Rapidly adapting mechanoreceptors continue to fire action potentials in response to stimulus onset and offset (i.e. to stimuli changes), and help detect stimulus movement on the skin.