sensory corpuscles Flashcards
which fiber types have free nerve endings?
C- slow, unmyelinated fibers that carry pain and temp
A-delta: fast myelinated
where are nerve fibers with free nerve endings located?
all skin, epidermis, some viscera
what senses do nerves with free endings carry?
pain and temperature
what types of nerve fibers have meissner’s corpuscles?
large, myelinated fibers that adapt quickly
where are meissner’s corpuscles?
glabrous (hairless) skin
fibers with meissner’s corpuscles transmit what information?
dynamic, fine/light touch, position sense
What types of fibers have pacinian corpuscles?
large, myelinated fibers
where are pacinian corpuscles located?
deep skin layers, ligaments and joints
what information do pacinian corpuscles transmit?
vibration, pressure
what type of fibers have Merkel’s discs?
large myelinated fibers that adapt slowly
where are merkel’s discs located?
hair follicles
what information do merkel’s discs transmit?
pressure, deep static tough (eg shapes, edges), position sense
