Neuro tracts Flashcards
Medial corticospinal
controls neck shoulder and arm mm’s
medial reticulospinal
postural mm, limb extensors, APAs
medial vestibulospinal
neck and upper back extensors
lateral vestibulospinal
ipsilaterally facilitates LMN extensors and inhbitis the flexors
lateral corticospinal
contralateral fractionation of hand
rubrospinal
contralateral UE flexors
lateral reticulospinal
faciliates flexors, inhibits extensors
spinocerebellum is made up of what 2 structure
the spinocerebellum is made up of the vermis and paravermis
spinocerebellum what ataxia
gait and limb ataxia
function of spinocerebellum
infulucences gait and limb movement
vestibulocerebellum:
outputs from cerebellum go to vestibular nuceli to infucence eyes and postural control
cerebrocerebellum
ataxia, cognition issues, distal hand function, visually guided movements, reaching, motor planning
why are cereellar lesions ipsilateral?`
ipsilateral because there is a double cross
pure cerebellar ataxia: what 3 thigns are intact
1) DTRs at ankle
2) vibration
3) proprioception
Romberg for cerebellar vs sensory ataxia
Cerebellar: look bad with EO and EC. use vision to subsititute for poor sensory input.
sensory ataxia: can stand with eyes open but not eyes closed
what is muscle strength like in cerebellar ataxia?
mm strength is normal
primary motor cortex function
voluntarily controlled mvmts
premotor area does what
planning of visually guided mvmt
SMA
planning internally motivated mvmts (I want to get up out of this chair)
normal pressure hydrocephalus can cause a triad of what 3 things
1) cognitive changes
2) bladder changes
3) gait disturabances
rapid onset of all 3
ACC (anterior cingulate gyrus) - lower activity in this area has been associated with what condition
major depressive disorder
amygdala!
emotional processing
