Clinical Case 558 (71)
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Created by:
stevenypark Plus on April 27, 2011
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11 terms
Terms | Definitions |
|---|---|
 What is the formula for pack-years? | number of packs smoked per day x years as a smoker |
| Review 6 possible locations of lesions that could cause decreased pain and temperature sensation on the right side of the face. | left S1 (hemisphere, lateral aspect - homonculus) right CN 5 (pons) left ventral trigeminal tract thalamus posterior limb internal capsule right spinal trigeminal tract and nucleus (medulla) |
| Dysarthria and dysphagia suggest damage to which 3 structures? | CN 9, CN 10 and/or nucleus ambiguus |
| Damage to which 2 structure causes singultus? | reticular formation CN 10 *medulla |
| Lack of elevation of the palate suggests damage to which neural structures (4)? | corticobulbar fibers CN 9, CN 10, nucleus ambiguus |
| Describe the ALS pathway. |  primary sensory neuron synapse at substantia gelatinosa secondary sensory neurons cross to contralateral side ascension in ALS fiber tract synapse at VPL nucleus of thalamus posterior limb and corona radiata primary somatosensory cortex S1 |
| Name 3 structures that, if lesioned, could cause Horner syndrome. | descending hypothalamospinal fibers sympathetic preganglionic neuron sympathetic postganglionic neuron |
| Lesion to which cerebellar peduncle can cause gait ataxia? | inferior cerebellar peduncle (vestibulocerebellar, olivocerebellar and posterior spinocerebellar afferents) |
| Damage to which structure in the medulla causes tendency to veer to the right side? | right vestibular nuclei |
| Name 6 structures damaged in wallenberg syndrome. | ALS central sympathetic pathway spinal trigeminal tract and nucleus inferior vestibular nucleus nucleus ambiguus reticular formation |
| Describe the spinal trigeminal pain pathway. |  primary sensory neuron in trigeminal ganglion enter through substance of the pons but descends in spinal trigeminal tract synapse with secondary sensory neurons at spinal trigeminal nucleus secondary sensory neuron cross at lower medulla neuron travels through the ventral trigeminal thalamic tract to the thalamus (VPM nucleus) tertiary go to axon of posterior limb of internal capsule to primary somatosensory cortex |
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