Spinal Tracts

Question 1

Upper Motor Neurons Lesion

Answer 1

Spastic paresis/ paralysis (hyper flexi a and hypertonia

Question 2

Lower Motor Neurons Lesion

Answer 2

Flaccid paresis/ paralysis (hypoflexia, hypotonia, atonia, atrophy)

Question 3

Fasciculus Gracilis

Answer 3

Mechanoreception T6 down ipsilaterally

Question 4

Faciculus Gracilis lesion

Answer 4

Ipsilateral loss of mechanoreception from T6 and down (segmentally and below)

Question 5

Fasciculus Cuneatus

Answer 5

Mechanoreception T6 and up ipsilaterally

Question 6

Fasciculus Cuneatus lesion

Answer 6

Ipsilateral loss of Mechanoreception C1-T6 ( segmentally and below)

Question 7

Spinocerebellar Tracts

Answer 7

Ipsilateral proprioception from lower body to ipsilateral cerebellum

Question 8

Spinocerebellar Tracts lesion

Answer 8

Ipsilateral ataxia (unsteady, wide gait)

Question 9

Dorsolateral Fasciculus

Answer 9

Ipsilateral pain and temperature reception at entry and 2 levels above

Question 10

Lateral Spinothalamic Tracts

Answer 10

Contralateral pain and temperature reception at segment and down

Question 11

Dorsolateral Fasciculus lesion

Answer 11

Ipsilateral loss of pain and temperature reception of the 3 segments in contact

Question 12

Lateral Spinothalamic tract lesion

Answer 12

Contralateral pain and temperature loss of segment and down

Question 13

Ventral White Comissure lesion

Answer 13

Bilateral loss of pain and temperature at segment

Question 14

Nucleus Proprius lesion

Answer 14

Ipsilateral loss of pain and temperature at segment 2 levels down ( ex. Nucleus Proprius lesion at T7 = ipsilateral loss at T9)

Question 15

Ventral Spinothalamic tract

Answer 15

Contralateral pain and temperature reception at segment and down

Question 16

Ventral Spinothalamic Tract lesion

Answer 16

Contralateral pain and temperature loss of segment and down

Question 17

Lateral Corticospinal tract

Question 18

Ventral Corticospinal Tract