Pain

Question 1

What are the different types of pain?

Answer 1

Nociceptive
Inflammatory
Pathological

Question 2

Skin pain?

Answer 2

Well localised

Pickling, stabbing, burning

Question 3

Muscle pain?

Answer 3

Poorly localised

Aching, tender, cramping, stabbing, burning

Question 4

Visceral pain?

Answer 4

Poorly localised

Dull, vague, nausea, fullness

Question 5

How does referred pain work?

Answer 5

Some visceral and skin afferent said converge on the same spinothalamic neurone.
Brain interprets as pain being from skin distant to organ

Question 6

What fibres make up nociceptors?

Answer 6

C fibres

Alpha delta fibres

Question 7

Which nociceptive fibres are fast?

Answer 7

Alpha delta

Question 8

Which nociceptive fibres are slow?

Answer 8

C fibres

Question 9

Classification of alpha delta fibres?

Answer 9

TypeI (high threshold) - require strong mechanical stimuli.

Type II - noxious mechanical and heat stimuli. Sensitive to capsaicin.

Question 10

Classification of C fibres?

Answer 10

C-MH
C-M
C-H
C-MiHi

Question 11

C-MH?

Answer 11

Mechanical and heat stimuli

Sensitive to capsaicin

Question 12

C-M?

Answer 12

Mechanical stimuli

Insensitive to heat and capsaicin

Question 13

C-H?

Answer 13

Noxious heat stimuli
Insensitive to mechanical
Sensitive to capsaicin

Question 14

C-MiHi?

Answer 14

Insensitive to heat and mechanical stimuli

Sensitive to capsaicin