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9 Cards in this Set
- Front
- Back
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Midbrain arterial supply
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PCA
SCA Branches of the basilar |
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Midbrain structures
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Oculomotor nucleus
Red nucleus Corticospinal tract Substantia nigra Cerebral aqueduct |
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Parinaud syndrome
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Paralysis of upward gaze, pupillary disturbances, no conve
Obstruction of cerebral aqueduct causing papilledema Caused by pineal tumor = insomnia |
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Benedikt syndrome
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Ptosis, dilated pupil, eye is down and out
Contralateral cerebellar ataxia Intention tremor Contralateral loss of light touch and proprioception |
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Weber syndrome
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CN III symptoms (same as Benedikt syndrome)
Contralateral spastic parlaysis of extremities Contralateral weakness of lower face, tongue, palate |
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Arterial supply to the pons
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Paramedian branches of the basilar artery
AICA |
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Pons structures
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Medial Longitudinal Fasciculus
CN 6 + 7 Medial lemniscus Corticospinal tract |
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Lateral inferior pontine syndrome
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Vestibular nucleus
CN 7 nucleus Dorsal Cochlear nucleus Spinaothalamic tract |
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Medial inferior pontine syndrome
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CN 6
Medial longitudinal fasciculus Medial lemniscus Corticospinal + Corticobulbar tract Pontine nuclei + pntocerebellar fibers |
