Practice questions

Question 1

what funiculus does the rubrospinal tract run

Answer 1

lateral funiculus

Question 2

where is the spinal accessory nuclei located

Answer 2

rexed lamina IX

Question 3

a patient with spinal cord injury complains of left lower limb numbness and weakness of right lower limb. where is the lesion located?

Answer 3

right side of the spinal cord

Question 4

where is lissauer’s tract located

Answer 4

posterior to the dorsal horn

Question 5

how is the anterior spinal artery formed in the cranium

Answer 5

each vertebral artery gives out one branch to run together to form the anterior spinal artery

Question 6

what axonal bundles cross through the anterior white commissure

Answer 6

anterior spinothalamic tract

Question 7

where is the parasympathetic motor function locate in the spinal cord

Answer 7

S2-4

Question 8

what structures form the internal segment of filum terminale

Answer 8

pia mater

Question 9

what tract does not maintain somatotopy

Answer 9

rubrospinal tract

Question 10

what are the functions of all tracts running through the lateral funiculus

Answer 10

fine motor
unconscious proprioception
sharp pain

Question 11

what tract contains the central process of the dorsal root ganglion neurons

Answer 11

gracile fasciculus

Question 12

the spinal canal is formed by what structures

Answer 12

vertebral foramina

Question 13

substantia gelatinosa is located in which rexed lamina

Answer 13

lamina II

Question 14

where does the teeth ligament proprioception project to the thalamic nucleus

Answer 14

shell of ventral posteromedial nucleus

Question 15

what body areas contain a high density of merkel cells and meissner corpuscle

Answer 15

fingers and lips

Question 16

a patient experienced a thalamic stroke that only affected ventral posteromedial nucleus. what body parts would you expect to be compromised for fine touch perception?

Answer 16

face