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26 Cards in this Set
- Front
- Back
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The medial, large cells of the reticular formation, which do output all over the place.
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Magnocellular
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The lateral cells of the reticular formation which receive sensory input.
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Parvocellular
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The midline group of cells in the reticular formation, secrete seratonin.
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Raphe nuclei
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The rostral Raphe nuclei regulate ___
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forebrain activity
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The caudal Raphe nuclei regulate ___
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pain
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Ascending and descending projects of the Reticular formation are found in the ___
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Medial Reticular Zone
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The ascending portion of the Medial Reticular zone, functions in arousal.
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ARAS
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The two groups of descending tracts in the medial reticular zone. Influence muscle tone and reflexes.
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Medial (pontine) reticulospinal tracts, Latera (medullary) reticulospinal tracts.
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The ___ increases muscle tone and spinal reflexes.
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medial/ pontine reticulospinal tracts
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The ___ decreases muscle tone and spinal reflexes.
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lateral/ medullary reticulospinal tracts
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Locus cerules is part of the ___
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ARAS
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Structure in pons that secreted norepinephrine. Functions in mood, memory, motor.
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Locus cerules
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Syndrome that can be caused by infarct of PICA
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Lateral medullary syndrome of Wallenburg
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Syndrome presenting with ataxa, dysphagia, dysarthria, Horner's, analgesia on one side of face, opposite side of body.
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Wallenburg syndrome.
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Wallenburg syndrome affects ___ nuclie/tracts
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Spinothalamic, spinal trigeminal, posterior spinocerebellar, etc.
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Damage to medullary pyramids and XII is caused by infarct of ___, can cause Inferior alternating hemiplegia
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vertebral artery
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Inferior alternate hemiplegia is caused by damage to ___
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corticospinal tracts in the pyramids, also hypoglossal nerve passing by.
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Syndrome presenting with same side tongue muscles, but opposite side extremities being paralyzed. May lose fine touch on opposite side.
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Inferior Alternating Hemiplegia.
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A tumor growing in cerebellar angle, which compresses VII, VIII, IX, X,
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Acoustic neuroma
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Tumor that causes vertigo and ringing of the ears, due to compressing VIII
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Acoustic neuroma
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Infection or swelling of the Facial nerve within the internal acoustic meatus can lead to ___. Lose taste in ant. 2/3 tongue.
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Bell's Palsy
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Irritation of the trigeminal nerve, causing severe pain.
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Trigeminal neuralgia.
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Bitemporal hemianopia (loss of half of field of vision) is common with tumors of the __
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pituitary
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Acoustic neuroma involves tumor of the ____ around VIII
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schwann cell
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The dorsal columns deal with __
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touch, pressure
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The anterolateral (spinothalamic) tract carries ___ info
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Pain and temperature info
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