physiology of pain

Question 1

Pain

Answer 1

• an unpleasant sensory and emotional experience associated with actual or potential tissue damage

Question 2

Types of pain

Answer 2

• Nociceptive pain
• Neuropathic
• Nociplastic

Question 3

What is nociceptive pain

Answer 3

Pain arises from actual/threatened damage to damage to non-neural tissue
- due to activation of nociceptors

Question 4

Neuropathic pain

Answer 4

Pain caused by a lesion or disease of the somatosensory nervous system

Question 5

Nociplastic pain

Answer 5

• combination fo both

Question 6

Define allodynia

Answer 6

Pain due to a stimulus that does not provoke pain

Question 7

Dyesthesia

Answer 7

Unpleasant sensation (scar from surgery)

Question 8

Hyperalgesia

Answer 8

Increased pain from a stimulus that normally provokes pain

Question 9

Hypoalgesia

Answer 9

Diminised pain in response to a normally painful stimulus

Question 10

Hypoesthsia

Answer 10

Decreases sensitivity to stimulation

Question 11

Acute pain

Answer 11

Pain less than 12 weeks

Question 12

Chronic pain

Answer 12

Pain for more than 3 months

Question 13

Nocipetive pain

Answer 13

• applies to a normally functioning somatosensory N.S66

Question 14

Nociceptive pain pathway

Answer 14

• they are sensory neurons that are found in any areas of the body that can sense pain externally/internally
• process results in perception of pain
• external: skin/cornea/mucosa
• internal: viscera/joints/muscles
• cell bodies of neurons reside in dorsal root ganglion or trigeminal ganglion

Question 15

Examples of neuropathic pain

Answer 15

1. ) Trigeminal neuralgia

2. ) Glossopharyngeal neuralgia