Term
| Lesion to primary motor cortex (area 4) results in paralysis and weakness, it is often due to stroke of which two arteries? |
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Definition
middle cerebral a.
anterior cerebral a. |
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Term
| A lesion to this area results in a reduced ability to coordinate actions of 2 sides of the body and the patient often suffers from akinesia (difficulty initiating movement) |
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Definition
| supplementary motor cortex (area 6) |
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Term
| A patient presents with apraxia, which is difficulty in performing complex motor tasks i.e. the patient has a hard time doing things like tying his shoe lace even though his motor and sensory tracts seem to still be in tact, what area is lesioned? |
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Definition
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Term
| A patient presents with Brown sequard syndrome. Describe the symptoms at the level of the lesion and below the lesion |
|
Definition
LMN symptoms at the level of the lesion
UMN symptoms below the level of the lesion
-ipsilateral UMN paralaysis and loss of proprioception
-contralateral loss of pain and temperature and sensation
-zone of ipsilateral LMN weakness and analgesia (inability to feel pain) |
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Term
Patient presents with lacunar strokes:
what is the site of injury
(corticospinal tract)
What are the clinical features |
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Definition
site of injury: internal capsule
clinical features: C/L hemiparesis may be coupled with various cranial nerve signs due to corticonuclear fiber invovlement |
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Term
A lesion rostral to the pyramidal decussation would cause which three conditions and what clinical features
(corticospinal tract) |
|
Definition
vascular lesions:
medulla: medial medulary syndrome
pons: millard-gubler syndrome
brainstem-weber syndrome
all produce contralteral hemiplegias with ipsilateral paralysis of tongue (medulla) facial muscles or lateral rectus muscle (pons) and most eye movements (midbrain) |
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Term
An injury to the ducssation of the pyramids would cause what type of clinical feature, differentiate
between rostral and caudal
(corticospinal tract) |
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Definition
rostra- bilateral paresis of upper limb
caudal- bilateral paresis of lower limb |
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Term
A bilateral lesion to cervical cord above c4-c5 would cause what?
(corticospinal) |
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Definition
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Term
Unilateral damage to the thoracic cord would result in what clinical feature?
(corticospinal) |
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Definition
| Ipsilateral monoplegia (lower extremeity |
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Term
| Bilateral lesion to thoracic cord would result in what? |
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Definition
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