Lecture 9 Peripheral + central response to trauma Flashcards
1
Q
Define pain
A
unpleasant sensory and emotional experience associated with actual or potential tissue damage, or described in terms of such damage
* “need state”
2
Q
Nociception
A
The neural process of detecting noxious (harmful) stimuli
3
Q
Nociceptors
A
specialized ‘free’ nerve endings that detect noxious stimuli.
4
Q
Classes of Nociceptors:
A
- Thermal
- Mechanical
- Polymodal
- Silent (not active unless inflammation or chem)
5
Q
A-delta
A
Myelinated
* Small diameter
* “First pain”
* Degree of localisation
6
Q
C fibres
A
Non-myelinated
* “Second pain”
* Slow and dull
7
Q
Dorsal Horn Lamina levels and fibres
A
Lamina I and V transmit A-delta
Lamina I and II transmit C fibres
8
Q
how is noxious info from the orofacial region communciated?
A
Through the spinal trigeminal nucleus (SpV) in brainstem
9
Q
A
10
Q
A
