Consolidation Flashcards
(36 cards)
1
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What is wallerian degeneration?
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7
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What is the internal capsule?
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The internal capsule is a collection of afferent and efferent fibers connecting to the cerebral cortex and the brainstem
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17
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MEDIAL MEDULLARY SYNDROME
- Spastic left hemiparesis - damage to right pyramid (right cortex –> right pyramid –> crosses to left in pyramidal decussation –> results in left hemiparesis)
- Loss of left position and vibration –> dorsal column (info from left body crosses in lower medulla, lesion is above this so loss of right medial lemniscus)
- Right deviation and atrophic tongue –> damage to hypoglossal nerve and tongue deviates toward lesion
18
Q
Damage to which artery in the brain causes medial medullary syndrome?
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Anterior spinal
19
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What are the signs/symptoms of medial medullary syndrome?
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Hemiparesis (lose pyramid)
Lose position/vibration/fine touch (medial lemniscus)
Tongue deviation and atrophy (hypoglossal nucleus)
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24
Q
What are the sign’s and symptoms of weber’s syndrome?
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CN3 Palsy (damage to oculomotor and edinger-westphal nuclei in midbrain)
Hemiparesis (opposite side as CN 3 palsy) (partial damage to pyramid in midbrain)
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Weber syndrome results from a stroke in which artery in the brain?
Posterior cerebral artery
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Describe how information travels from the corticospinal and cortiocbulbar pathways to the cerebellum and then back up to the thalamus.
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Movement of what areas of the body are impacted by the corresponding areas of the cerebellum?
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What is internuclear opthalmoplegia?
Damage to MLF disrupts horizontal gaze and nystagmus. The abducens nucleus is unable to communicate with the oculomotor and trochlear nuclei.
