Term
| ventral nerve root lesion |
|
Definition
| LMN signs (flaccid paralysis, atrophy, hyporeflexive) |
|
|
Term
|
Definition
ipsilateral loss of sensation
(usually will result in a burning,
tingling pain) |
|
|
Term
| intermediolateral cell column lesion |
|
Definition
|
|
Term
|
Definition
decreased vib/propreoception sensation
in ipsilateral leg (below T6) |
|
|
Term
|
Definition
| decreased vib/prop sensation on ipsilateral arm (T6 and above) |
|
|
Term
| lateral cortical spinal tract |
|
Definition
if in spinal cord = ipsilateral
weakness, UMN findings
(hyper-reflexive, babinski,
spastic weakness)
if in brain stem = contralateral
weakness and UMN signs |
|
|
Term
|
Definition
| contralateral decrease in pain/temp |
|
|
Term
| ventral/anterior white commisure |
|
Definition
| decrease vib/prop bilaterally at level above the lesion |
|
|
Term
| dorsal spinal cerebellar tract |
|
Definition
| ipsilateral lower limb ataxia |
|
|
Term
| ventral spinal cerebellar tract lesion |
|
Definition
| if lesion above L2, contralateral lower limb ataxia |
|
|
Term
|
Definition
| LMN findings, atrophy and weakness of ipsilateral SCM and trapezius muscle |
|
|
Term
| internal arcuate fiber function |
|
Definition
| carry vib/prop from cuneatus and gracilus nucelei as they cross before becoming medial lemniscus |
|
|
Term
|
Definition
contralateral weakness
UMN findngs |
|
|
Term
| solitary nucleus and tract lesion |
|
Definition
loss of respiratory reflexes
loss of blood pressure regulation
loss of sense of taste |
|
|
Term
|
Definition
difficulty swallowing and phonation due to ipsilateral paralysis of voluntary muscles in larynx/pharynx
Hiccups |
|
|
Term
| medial longitudinal fasiculus lesion |
|
Definition
paralysis of medial rectus muscle
Diplopia
Nystagmus is normal eye
INO = multiple sclerosis |
|
|
Term
| tectospinal tract function |
|
Definition
| turning head in responce to stimuli |
|
|
Term
| inferior olivary nucleus function |
|
Definition
| relay nucleus for cerebellum |
|
|
Term
| inferior cerebellar peduncle function? Lesion? |
|
Definition
contains 3 of 4 ascending spinal cord cerebellar pathways
ipsilateral ataxia |
|
|
Term
| medial and inferior vestibular nucleus lesion |
|
Definition
|
|
Term
| lateral vestibulospinal tract lesion |
|
Definition
|
|
Term
| middle cerebellar peduncle lesion |
|
Definition
ipsilateral ataxia
(only contains 1 pathway: corticopontocerebellar tract) |
|
|
Term
| superior cerebellar peduncle function |
|
Definition
| carries efferent pathways |
|
|
Term
| central tegmental tract lesion |
|
Definition
Large bilateral lestion = coma
smaller lesion = palatal myoclonus |
|
|
Term
|
Definition
| fine motor control (playing piano) |
|
|
Term
| mesencephalic trigeminal nucleus lesion |
|
Definition
| increased jaw jerk reflex implies lesion ABOVE the pons |
|
|
Term
| lateral lemniscus function? lesion? |
|
Definition
Function: main ascending auditory pathway and will synapse in inf. colliculus
lesion: doesn't results in hearing loss bc so many other pathways |
|
|
Term
| cerebral aquaduct occlusion? |
|
Definition
| non-communicating hydrocephalus, 3rd ventricle dilation |
|
|
Term
| Superior colliculus function? |
|
Definition
| head turning to visual stimuli |
|
|
Term
| what does substantia niagro produce? |
|
Definition
|
|
Term
| superior olivary nucleus function? |
|
Definition
| auditory, sound localization |
|
|
Term
| principal trigeminal nucleus function? |
|
Definition
|
|
Term
|
Definition
|
|
Term
| vestibular apparatus lesion |
|
Definition
|
|
Term
|
Definition
LMN, tongue atrophy
points towards lesion |
|
|
Term
|
Definition
pain/temp
crosses in white commisure |
|
|
Term
| Corticospinal tract lesion? |
|
Definition
|
|
Term
| substantia gelatinosa function? |
|
Definition
|
|
Term
| Medial medullary syndrome is caused by occlusion of what artery? |
|
Definition
|
|
Term
| lateral medullary syndrome is due to occlusion of what artery? |
|
Definition
|
|
Term
| where would a lesion causes Weber's syndrome? |
|
Definition
| 3rd nerve and cerbral peduncle (posterior cerebral artery) |
|
|
