Tactile Receptors Flashcards
Found in non-partisan (glabrous) skin, especially the fingernails and lips; for fine touch, two-point discrimination, movement of objects and low-frequency vibration
Meissner’s corpuscles
Expanded tip tactile receptors; for localizing touch sensation and determining texture
Merkel’s disc
In hair base; for determining movement of object on skin
Hair-end organ
In deep skin, internal tissues and joint capsules; for heavy and prolonged touch and signalling degree of joint rotation
Ruffini’s end organs
Onion-like structure in skin and deep fascia; for detecting pressure, touch and high-frequency vibration
Pacinian corpuscles
Meissner’s corpuscles: receptor type
Fast adapting, type 1
Merkel’s disc: receptor type
Slow adapting, type 1
Ruffini’s end organs: receptor type
Slow adapting, type 2
Pacinian corpuscles: receptor type
Fast acting, type 2
Merkel’s discs on top of each other combine to form this
Iggo dome receptors
Found in skin; for touch and pressure
Free nerve endings
Special regions of the semicircular canals that detect circular movements of the head
Cristae ampullares
Cold and pressure receptors in the dermis
Krause end bulbs