Pruritis Flashcards by Rosa Bock | Brainscape

Q

what nerve fibres transmit the sensation of itch

A

unmyelinated C fibres

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

what is a CNS mediator of itch

A

opiates

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

define pruritoceptive

A

something in skin triggers the itch

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

examples of pruritoceptive causes of itch

A

opioids, insect bite reaction

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

what are insect bite reactions mediated by

A

histamine

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

what is lichen planus associated with

A

Hep C - can cause neurogenic itch

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

what occurs 2y to chronic itch

A

prurigo nodularis

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

define neuropathic itch

A

physical damage to central or peripheral nerves

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

example of neuropathic itch

A

shingles

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

define neurogenic itch

A

no evident physical damage in CNS but itch caused by eg opiate effects in CNS

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

what is neurogenic itch associated with

A

systemic diseases eg primary billiary cirrhosis

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

define psychogenic itch

A

psychological causes with no CNS damage

How well did you know this?

1

Not at all

2

3

4

5

Perfectly