Ischemic CVA Syndromes- Lecture 11 Flashcards
how are the primary motor and sensory areas arranged
somatotopically
cortical homunculus
different parts of the body are represented by different portions of the brain
what is the cortical area devoted to each body part proportional to
motor innervations received by the corresponding body parts
ischemic syndromes
MCA
ACA
PCA
IC
vertebral
basilar
cerebellar
MCA
upper and lower division
is MCA embolic or thrombic
embolic more often
MCA is most often
occluded artery as a result of vascular dz
MCA is the
largest terminal branch of the IC
what does the MCA supply
lateral cerebral hemisphere
posterior internal capsule
corona radiata
globus pallidus
caudate
putamen
MCA occlusion results in
contralateral spastic hemiparesis
contralateral hemianesthesia
contralateral homonymous hemianopsia w/ impairment of conjugate gaze in the direction opposite the lesion
homonymous hemianopsia
loss of the temporal visual field form one eye and the nasal visual field of the other eye
R occipital lobe damage
loss of L visual field
L temporal and R nasal
L occipital lobe damage
loss of R visual field
R temporal and L nasal
MCA occlusion –> L hemisphere is involved
dominant
global aphasia
MCA occlusion –> R hemisphere involved
non-dominant
perceptual deficits
perceptual deficits
anosognosia
unilateral neglect
spatial disorganization
upper division MCA involvement of dominant hemisphere
broca’s aphasia with hemiparesis of face and UE more than LE
broca’s aphasia
frontal lobe damage