Review: A Delta and C-PMN Nociceptors Flashcards Preview

SCT3 Neurology Topic 5 > Review: A Delta and C-PMN Nociceptors > Flashcards

Flashcards in Review: A Delta and C-PMN Nociceptors Deck (16)
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1
Q

Are A-Delta nociceptors myelinated?

A

YES

2
Q

Are C-PMN (polymodal) nociceptors myelinated?

A

NO

3
Q

Name the 2 stimuli for A-Delta nociceptors?

A
  1. TEMP THAT CAN DAMAGE TISSUE
  2. HIGH-INTENSITY MECHANICAL PRESSURE
    (that can potentially cut tissue)
4
Q

Name the 3 stimuli for C-PMN (polymodal) nociceptors?

A
  1. THERMAL
  2. MECHANICAL
  3. ALGOGENIC CHEMICALS IN INTERSTITIAL FLUID
5
Q

Name the neuron speed of A-Delta nociceptors?

A

FAST, FIRST PAIN

35 MPH

6
Q

Name the neuron speed of C-PMN (polymodal) nociceptors?

A

CARRIES SLOWER SECOND

2.5 MPH

7
Q

Where are A-Delta nociceptors distributed?

A

SUPERFICIAL SKIN;

INFOLDING OF ALIMENTARY CANAL

8
Q

Where are C-PMN (polymodal) nociceptors distributed?

A

DEEPER PART OF SKIN
+
EVERY OTHER TISSUE (except nervous tissue)

9
Q

Receptive fields of A-Delta nociceptors are ___________; sensations are sharply delineated.

A

SMALL

10
Q

Receptive fields of C-PMN (polymodal) nociceptors are ___________; sensations are not as clearly localized.

A

LARGE

11
Q

What is the patients perceptive correlation of A-Delta nociceptors? (4)

A
SHARP 
\+
STINGING
\+
CUTTING
\+
STABBING
12
Q

What is the patients perceptive correlation of C-PMN (polymodal) nociceptors? (5)

A
DULL
\+
BURNING 
\+
ACHING 
\+
THROBBING
\+
ITCH
13
Q

Name the pain behaviour associated with A-Delta nociceptors?

A

WITHDRAWAL RESPONSE

14
Q

Name the pain behaviour associated with C-PMN (polymodal) nociceptors?

A

IMMOBILIZATION

15
Q

On which tract do A-Delta Nociceptors travel on?

A

NEOSPINOTHALAMIC

16
Q

On which tract do C-PMN (polymodal) nociceptors travel on?

A

PALEOSPINOTHALAMIC