Pain Flashcards
1
Q
What is Pain?
A
unpleasant sensory and emotional experience
associated with actual or potential tissue damage
2
Q
What is Nociception?
A
unconscious activity
induced by a harmful stimulus
on sense receptors
3
Q
Reception of Pain:
- mechanical/ thermal stimuli
- chemical stimuli
A
Mechanical/ Thermal stimuli - fast and slow pains
Chemical Stimuli - slow pain
4
Q
List 5 chemicals that stimulate free nerve endings in damaged tissue
A
- Serotonin
- Histamine
- Bradykinin
- Lactic Acid
- K+
5
Q
Regarding the reception of pain
role of prostaglandin and substance P
A
lowers the threshold for pain
does not stimulate the nerve endings by themselves
