Nociception Flashcards
1
Q
What activates nociceptors?
A
Harmful stimuli applied to the skin or subcutaneous tissue
2
Q
What are nociceptors?
A
Peripheral endings of primary sensory neurons
3
Q
Where are the cell bodies of nociceptors found?
A
Dorsal root and trigeminal ganglia
4
Q
True or false:
Nociceptors are the most differentiated of the skin sensory receptors.
A
False….they are the LEAST differentiated
5
Q
Describe thermal or mechanical nociceptors:
A
Small diameter, thinly myelinated A-delta fibers that are fast conductors
Activation feels like a sharp or prick pain
6
Q
Describe polymodal nociceptors:
A
small diameter, unmyelinated C fibers that are slow conductors
7
Q
What are polymodal nociceptors activated by?
A
high intensity mechanical, chemical, hot and cold stimuli
