Anatomy And Physiology Of Pain

Question 1

4 steps in the pain signaling mechanism

Answer 1

1. Transduction
2. Transmission
3. Modulation
4. Perception

Question 2

Largest to small sensory fibers

Answer 2

A-beta, A-delta, C

Question 3

Supraspinal modulation of pain occurs in what 2 structures?

Answer 3

Periaqueductal gray and the rostral ventromedial medulla pathway

Question 4

Which laminae of the dorsal horn are nociceptive specific

Answer 4

Laminae I and II only respond to noxious stimuli

Question 5

Which fibers are stimulated to inhibit pain response according to gate control theory

Answer 5

A-beta

Question 6

Which sensory fiber carries dull achy burning pain

Answer 6

C fibers

Question 7

What is the primary control center for descending pain modulation

Answer 7

Periaqueductal gray

Question 8

Fastest to slowest sensory fibers

Answer 8

A-beta, A-delta, C

Question 9

C fibers terminate at the spinal cord at which laminae?

Answer 9

I and II

Question 10

Which sensory fiber carries sharp pain

Answer 10

A-delta

Question 11

A-delta fibers terminate at the spinal cord at which laminae?

Answer 11

I, III, IV, V

Question 12

A-beta fibers terminate at the spinal cord at which laminae?

Answer 12

III, IV, V