ML2 Somatosensory System Flashcards
1
Q
Two subdivisions of the somatosensory system (& receptors involved)
A
- Pain and temperature - free nerve endings
- Pressure, vibration, light touch, cuntaneous tension - mechanoreceptors (i.e. Pacinian corpuscles, Meissner’s corpuscles, Merkel reeptors and Ruffini corpuscles)
2
Q
40% of mechanoreceptors are…
A
Meissner’s corpuscles
3
Q
Which mechanoreceptors are slow-adapting?
A
Merkel & Ruffini
4
Q
Which mechanoreceptors have large RFs?
A
Pacinian & Ruffini
5
Q
What kind of sensation does the DCML pathway carry?
A
Fine touch, proprioception, vibration
6
Q
What kind of sensation does the ST pathway carry?
A
Pain, temperature, coarse touch
7
Q
Which mechanoreceptors are fast-adapting?
A
Meissner & Pacinian
8
Q
Which mechanoreceptors have small RFs?
A
Merkel & Meissner
