Nociceptors

Question 1

What may stimulation of a nociceptor cause?

Answer 1

NOCICEPTIVE PAIN

Not damage to the nervous system itself

Question 2

Which type of pain may result specifically from damage to the nervous system itself, due to disease or trauma?

Answer 2

NEUROPATHIC PAIN
aka
NEUROGENIC PAIN

Question 3

When there is no identifiable structural pathology capable of explaining the pain, which type is it? (ie - chronic low back pain)

Answer 3

NOCICEPTIVE PAIN

Question 4

Name the 2 major types of nociceptors?

Answer 4

A-DELTA (Sharp Pain)
+
C aka C-PMN (Chronic Pain)

Question 5

Is A-Delta myelinated?

Answer 5

YES

Question 6

Is C-PMN myelinated?

Answer 6

NO

Question 7

Name the two stimuli for A-Delta?

Answer 7

1. THERMAL

2. MECH PRESSURE THAT COULD DAMAGE TISSUE

Question 8

Name the three stimuli for C-PMN?

Answer 8

(POLYMODAL)

1. THERMAL
2. MECHANICAL PRESSURE
3. CHEMICAL (in interstitial fluid)

Question 9

A-Delta’s neuron speed is _______, known as the “first pain”.

Answer 9

FAST

Question 10

C-PMN’s neuron speed is _______, known as the “second pain”.

Answer 10

SLOW

Question 11

A-Delta’s “sharp pain” is distributed on the _____________ skin.

Answer 11

SUPERFICIAL

Question 12

C-PMN’s “slow pain” is distributed on the _____________ skin.

Answer 12

DEEPER SKIN
+
EVERY OTHER TISSUE EXCEPT NERVOUS

Question 13

Describe the receptive fields of A-Delta; size and sensation level?

Answer 13

SMALL
+
SENSATIONS SHARPLY DELINEATED

Question 14

Describe the receptive fields of C-PMN; size and sensation level?

Answer 14

LARGE
+
SENSATIONS NOT AS CLEARLY LOCALIZED
(ie INDIGESTION)

Question 15

Which 4 key pain words describe the perceptive correlation of A-Delta?

Answer 15

SHARP
\+
STINGING
\+
CUTTING
\+
STABBING

Question 16

Which 5 key pain words describe the perceptive correlation of C-PMN?

Answer 16

DULL
\+
BURNING
\+
ACHING 
\+
THROBBING
\+
ITCHING

Question 17

Name the pain behaviour associated with A-Delta?

Answer 17

WITHDRAWAL RESPONSE

Question 18

Name the pain behaviour associated with C-PMN?

Answer 18

IMMOBILIZATION

don’t use damaged thing