Lecture 4: Pain Flashcards
1
Q
What is hyperalgesia?
A
Increased pain
2
Q
What is allodynia? Give an example.
A
When usually non-painful stimuli hurts. E.g. a touch to a sunburnt area.
3
Q
Which has the smallest diameter, A beta, A delta or C fibres?
A
C fibres. Less than 1μm in diameter!
4
Q
Which peripheral mediator of pain sensitises nociceptors rather than activating them directly?
A
Prostaglandins
5
Q
Activity of which brain area is correlated with emotional “unpleasantness” of pain?
A
Anterior cingulate cortex (ACC).
