Sensory Pathway

Question 1

Sensory modalities

Answer 1

Proprioception

Exteroception

Question 2

Proprioception types

Answer 2

Conscious

Unconscious

Question 3

Exteroception types

Answer 3

Pain
Temperature
Pressure
Vibration
Fine touch
Crude touch

Question 4

Dorsal horn nuclei

Answer 4

Substancia gelatinosa
Nucleus proprius
Dorsal nucleus of Clarke
Visceral Afferent nucleus

Question 5

Substancia gelatinosa

Answer 5

All segments
Pain
Temperature

Question 6

Nucleus proprius

Answer 6

All segments
Crude touch
Pressure

Question 7

Dorsal nucleus of Clarke

Answer 7

C8 > L3

Proprioception

Question 8

Visceral Afferent nucleus

Answer 8

T1 > L3

Visceral sensation

Question 9

Spinal sensory pathways

Answer 9

Gracile and cuneate
Spinocerebellar
Lateral spinothalamic
Ventral spinothalamic

Question 10

Conscious pathway

Answer 10

Gracile and cuneate

Question 11

Unconscious pathway

Answer 11

Spinocerebellar tracts

Question 12

Pain and temperature spinal pathway

Answer 12

Lateral spinothalamic

Question 13

Fine touch and vibration spinal pathway

Answer 13

Gracile and cuneate

Question 14

Crude touch and pressure spinal pathway

Answer 14

Ventral spinothalamic

Question 15

Neurons of lateral spinothalamic tract

Answer 15

Dorsal root ganglia > Substancia gelatinosa > VPL

Question 16

Neurons of ventral spinothalamic tract

Answer 16

Dorsal root ganglia > Nucleus proprius > VPL

Question 17

What’s syringomyelia

Answer 17

Widening of the central canal

Bilateral Loss of pain and temperature below

Question 18

Spinothalamic tracts travel ……….. Ipsilaterally and then ………….. the spinal cord in tract of ……………

Answer 18

One to two | cross | Lissauer

Question 19

Fasciculus gracilis extension and supply

Answer 19

All spinal cord | supply LL + Lower thorax

Question 20

Fasciculus cuneatus extension and supply

Answer 20

Start at mid thorax | Supply UL + Upper thorax + Cervical region

Question 21

Neurons of gracile and cuneate

Answer 21

Dorsal root ganglia > Gracile and cuneate nuclei > VPL

Question 22

2nd order neurons of gracile and cuneate form

Answer 22

Internal arcuate the decussate
Sensory decussation
Ascend as medial leminscus

Question 23

Posterior spinocerebellar tract supply

Answer 23

LL + Trunk

Question 24

Anterior spinocerebellar tract supply

Answer 24

LL + UL + Trunk

Question 25

Dorsal spinocerebellar tract path

Answer 25

Dorsal root ganglia > Dorsal nucleus of Clarke > Ipsilateral lateral white column > Inferior cerebellar peduncle

Question 26

Dorsal spinocerebellar tract does not .....................

Answer 26

Cross midline

Question 27

Ventral spinocerebellar tract path

Answer 27

Dorsal root ganglia > Dorsal nucleus of Clarke > Contralateral lateral white column > Superior cerebellar peduncle

Question 28

Ventral spinocerebellar tract ........ midline ...........

Answer 28

Cross | twice