block d lecture 3

Question 1

3 classes of sensory receptors

Answer 1

cutaneous
prorioceptors
special senses

Question 2

what part of the sensory receptor in skin is sensitive to pain and temp

Answer 2

free nerve endings

Question 3

what part of sensory receptor in skin is sensitive to pressure and vibration

Answer 3

pacinian corpsuscle

Question 4

3 parts of the sensory receptor in skin that is sensitive to various types of touch

Answer 4

merkels disc
ruffinis ending
messners corpsuscle

Question 5

3 parts of the sensory receptor in skin that is sensitive to various types of touch

Answer 5

merkels disc
ruffinis ending
messners corpsuscle

Question 6

where is 1st order neuron located

Answer 6

reeceptor

Question 7

where is 2nd order neuron located

Answer 7

between thalamus and spinal cord

Question 8

where is 3rd order neuron located

Answer 8

between thalamus and cortex

Question 9

where is 3rd order neuron located

Answer 9

between thalamus and cortex

Question 10

2 sensory pathways to brain

Answer 10

dorsal column
spinothalamic

Question 11

what is decussation

Answer 11

pathways cross to other side
thus sensory info processed on other side of brain

Question 12

what does dorsal column system recognise

Answer 12

fine touch
pressure
proprioception

Question 13

what does spinothalamic system recognise

Answer 13

pain
temp
coarse touch

Question 14

where does all coulmn info go

Answer 14

PCG via 3rd order neuron

Question 15

2 types of nociceptor fibre

Answer 15

A* fibre
C fibre

Question 16

what do A* recognise and properties

Answer 16

fast sharp pain
myelinated

Question 17

what do C fibres recognise and properties

Answer 17

slow dull aching pain
unmyelated

Question 18

where are thermo and mechanoreceptors located

Answer 18

A* fibres

Question 19

where are polymodal nociceptors located

Answer 19

C fibres

Question 20

where is referred pain

Answer 20

pain percieved to come from different part of body than where generated

Question 21

what is spinal cord modulation of pain carried by

Answer 21

C fibres

Question 22

why can you not treat pain carried by A* fibres

Answer 22

no opiate receptors

Question 23

examples of non steroidal anti inflammatory drugs

Answer 23

aspirin
ibuprofen

Question 24

how do non steroidal anti inflammatory drugs block inflammation

Answer 24

blocks COX1 and COX2