Term
|
Definition
|
|
Term
| where are the pyramids located |
|
Definition
| ventral surface of the medulla |
|
|
Term
| represents the crossover point of corticospinal fibers |
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Definition
|
|
Term
| cuneate structures from internal to external (3) |
|
Definition
| nucleus, fasciculus, tubercle |
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|
Term
| gracile structures from internal to external |
|
Definition
| nucleus, fasciculus, tubercle |
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|
Term
| trigeminal eminence is formed by what |
|
Definition
|
|
Term
| think dark area just lateral to the lightly staining spinal nucleus of V |
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Definition
|
|
Term
| 3 dorsal sulci (above T6) |
|
Definition
| dorsal median, dorsal intermediate, dorsolateral |
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|
Term
| separates fasciculi cuneate and gracile in the SC and medulla |
|
Definition
| dorsal intermediate sulcus |
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|
Term
| at the level of the sensory decussation, what has not crossed yet? |
|
Definition
| descending motor fibers, externally they form the pyramids |
|
|
Term
| internal arcuate fibers are contained where |
|
Definition
|
|
Term
| what forms the sensory decussation? |
|
Definition
| where internal arcuate fibers cross and become the medial lemniscus |
|
|
Term
| internal arcuate fibers become the medial lemniscus how? |
|
Definition
| cross onto the contralateral side |
|
|
Term
| difference between closed and open medulla |
|
Definition
| presence of the 4th ventricle |
|
|
Term
|
Definition
|
|
Term
| where do climbing fibers enter |
|
Definition
|
|
Term
| inferior olivary nucleus contains cells of origin of axons known as... |
|
Definition
|
|
Term
| inferior cerebellar peduncles carry fibers to the cerebellum from where |
|
Definition
|
|
Term
| Median and Inferior vestibular nuclei have a salt and pepper appearance due to what |
|
Definition
| combo of cell bodies and myelinated descending motor fibers from lateral vestibular nucleus |
|
|
Term
| nucleus which resembles inferior olivary nucleus and is one of the deep cerebellar nuclei |
|
Definition
|
|
Term
|
Definition
| dentate, emboliform, globose, fastigal |
|
|
Term
| what forms the facial colliculi |
|
Definition
| fibers of the facial nerve travelling over the abducens nuclei |
|
|
Term
| structure medial to the lateral lemnsicus and continuous with it |
|
Definition
|
|
Term
| fibers of what structure enter the inferior colliculus |
|
Definition
|
|
Term
| medial geniculate body is part of what? |
|
Definition
|
|
Term
| Vestibular System projects to where (5) |
|
Definition
| cortex, thalamus, cerebellum, brainstem, spinal cord |
|
|
Term
| primary vestibular fibers enter the brainstem where |
|
Definition
|
|
Term
| fibers which enter the cerebellopontine angle constitute what? |
|
Definition
|
|
Term
| vestibular nerve is which part of CN VIII |
|
Definition
|
|
Term
| after entering the brainstem, some primary vestibular fibers of CN VIII enter the cerebellum directly via what |
|
Definition
|
|
Term
| most medial inferior portion of the inferior cerebellar peduncle |
|
Definition
|
|
Term
| majority of primary vestibular fibers bypass the cerebellum and synapse directly on what |
|
Definition
|
|
Term
| what are the 4 major vestibular nuclei |
|
Definition
| superior, inferior, medial, lateral |
|
|
Term
| vestibular nuclei extend from where |
|
Definition
|
|
Term
| vestibular nuclei extend through where |
|
Definition
|
|
Term
| vestibular nuclei occupy position where |
|
Definition
| floor and lateral wall of the 4th ventricle |
|
|
Term
| fibers projecting rostrally from teh superior and medial vestibular nuclei, and fibers projecting caudally from the medial and lateral vestibular nuclei |
|
Definition
| medial longitudinal fasciculus |
|
|
Term
| inferior vestibular nucleus contains fibers of what tract |
|
Definition
| fibers of the lateral vestibulospinal tract |
|
|
Term
| which vestibular nucleus receives the greatest number of primary vestibular fibers |
|
Definition
| inferior vestibular nucleus |
|
|
Term
| cell bodies from the medial vestibular nucleus have axons that ascend and descend what |
|
Definition
| medial longitudinal fasiculus |
|
|
Term
| descending axons from the medial vestibular nucleus comprise what tract |
|
Definition
| medial vestibulospinal tract |
|
|
Term
| ascending axons from the medial vestibular nucleus project where? |
|
Definition
|
|
Term
| ascending axons from the medial vestibular nucelus control what functions? |
|
Definition
| control of extraocular eye muscles |
|
|
Term
| which vestibular nucleus is the only one to recieve descend afferents from more rostral areas of the brainstem |
|
Definition
| medial vestibular nucleus |
|
|
Term
| axons from which nucleus synapse on lateral rectus muscles? |
|
Definition
|
|
Term
| axons from the abducens nucleus synapse on what? |
|
Definition
|
|
Term
| the abducens nucleus receives vestibular projections via what |
|
Definition
| medial longitudinal fasiculus |
|
|
Term
| vestibular nuclei are no longed present at what rostral level? |
|
Definition
|
|
Term
| ascending vestibular fibers from the vestibular nuclei continue in what in the Upper Pons? |
|
Definition
| medial longitudinal fasiculus |
|
|
Term
| the trochlear nerve innervates what eye muscle |
|
Definition
|
|
Term
| the trochlear nucleus receives ascending vestibular fibers from what structure at the level of the inferior colliculi |
|
Definition
| medial longitudinal fasciculus |
|
|
Term
| cranial nerve nucleus at the level of the superior colliculus |
|
Definition
|
|
Term
| the fibers of teh oculomotor nucleus travel through and around what to form CN III |
|
Definition
|
|
Term
| structure thought to send descending bilateral projections in the medial longitudinal fasiculus to nuclei of CN II< IV and medial vestibular nuclei |
|
Definition
| interstitial nucleus of cajal |
|
|
Term
| Ventral Posterior Inferior nucleus of the thalamus recieves what input? |
|
Definition
|
|
Term
| VPI relays information to the postcentral gyrus in the parietal lobe near where? |
|
Definition
| junction of Brodmann's areas 2&5 |
|
|
Term
| area considered the primary vestibular area of teh cortex for conscious perception of movements of the head in space |
|
Definition
|
|
Term
| cerebellum lies under what dura mater |
|
Definition
|
|
Term
| cerebellum likes posterior to what 2 structures |
|
Definition
|
|
Term
| what forms the roof of the 4th ventricle |
|
Definition
|
|
Term
| the cerebellum is divided into what? |
|
Definition
|
|
Term
| each lateral hemisphere contains these structures on teh superior surface (4) |
|
Definition
| anterior lobe, posterior lobe, primary fissure, vermis |
|
|
Term
| the inferior view of the cerebellum contains these 3 structures |
|
Definition
| vermis, tonsil, horizontal fissure |
|
|
Term
| what is the inferior most part of the vermis |
|
Definition
|
|
Term
| 5 structures of the ventral view of the cerebellum |
|
Definition
| SCP, MCP, ICP, flocculus, nodulus |
|
|
Term
| SCP mainly carries information from where |
|
Definition
|
|
Term
| SCP mainly carries information to where |
|
Definition
| midbrain and thalamic structures |
|
|
Term
| MCP carries what type of information |
|
Definition
|
|
Term
| MCP carries descending information from where |
|
Definition
|
|
Term
| MCP carries descending information to where |
|
Definition
|
|
Term
| MCP carries descending information from the cortex via what? |
|
Definition
|
|
Term
| ICP carries information from where |
|
Definition
| ascending tracts and nuclei in the medulla |
|
|
Term
| ICP carries information to where |
|
Definition
|
|
Term
| ventral spinocerebellar tract conveys information primarily from where |
|
Definition
|
|
Term
| spinocerebellar tract that is a double crossed tract |
|
Definition
| ventral spinocerebellar tract |
|
|
Term
| ventral spinocerebellar tracts cell bodies of origin are located where |
|
Definition
| intermediate zone of spinal gray matter |
|
|
Term
| ventral spinocerebellar tract ascends how |
|
Definition
|
|
Term
| ventral spinocerebellar tract crosses back to the ipsilateral side where |
|
Definition
|
|
Term
| dorsalspinocerebellar tract can begun to be seen at which level? |
|
Definition
|
|
Term
| what are the cells of origin for the dorsal spinocerebellar tract |
|
Definition
| nucleus dorsalis/clark's column |
|
|
Term
| fibres that will synapse in the accessory (lateral) cuneate nucleus are located where |
|
Definition
|
|
Term
| at the sensory decussation, the Dorsal Spinocerebellar tract has moved dorsally just lateral to what tract? |
|
Definition
|
|
Term
| Dorsal spinocerebellar tract enters the cerebellum via what |
|
Definition
|
|
Term
| the ventral spinocerebellar tract enters the cerebllum via what? |
|
Definition
| superior cerebellar peducnle |
|
|
Term
| where does the cuneocerebellar tract originate |
|
Definition
| accessory cuneate nucleus |
|
|
Term
| climbing fibers originate from the inferior olivary nucleus and cross to the contralateral side through what |
|
Definition
|
|
Term
| climbing fibers cross from the inferior olivary nucleus, through the medial lemniscus to where |
|
Definition
| inferior cerebellar peduncle |
|
|
Term
| pontocerebellar fibers cross and enter the cerebllum through what |
|
Definition
| middle cerebellar peduncle |
|
|
Term
| fibers of the pontocerebellar group can be distinguished from fibers in the medial leminiscus or corticospinal tracts how? |
|
Definition
| pontocerebellar fibers travel horizontally |
|
|
Term
| superior medullary vellum contains what fibers |
|
Definition
| decussating fibers of the trochlear nerve |
|
|
Term
| decussation of the SCP is at what level |
|
Definition
|
|
Term
| why are the fibers of the ventral spinocerebellar tract not visible at the level of the inferior colliculi? |
|
Definition
| the fibers of teh VSCT decussate back to their side of origin |
|
|
Term
| tract just medial to fibers of the medial lemniscus and trigeminothalamic tract at the level of the superior colliculus |
|
Definition
| dentatorubrothalamic tract |
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|
