Neuroscience FINAL EXAM \u2013 USA (Latest 2023\/ 2024 Update) Exam Prep with Questions and Verified Answers| 100% Correct| Grade A<\/p>\n\n\n\n
Neuroscience FINAL EXAM \u2013 USA (Latest
2023\/ 2024 Update) Exam Prep with
Questions and Verified Answers| 100%
Correct| Grade A
Q: is ataxia ipsilateral or contralateral to the side of the lesion? why?
Answer:
Ipsilateral; pathways from the cerebellum to the lateral motor systems and periphery are “double
crossed”
Q: What do midline lesions cause?
Answer:
unsteady gait (truncal ataxia) and eye movement abnormalities
Q: What do lesions lateral to the vermis cause?
Answer:
limb ataxia (appendicular ataxia)
Q: During double crossing of the pathways, where is the first crossing?
Answer:
exits at superior cerebellar peduncle and crosses
Q: During double crossing of the pathways, where is the second crossing?<\/p>\n\n\n\n
Answer:
pyramidal decussation and ventral tegmental decussation (then influence musculature via
corticospinal and rubrospinal tracts)
Q: Do lesions of the cerebellar vermis cause unilateral deficits? Why\/why not?
Answer:
They do not; the medial motor systems influence the proximal trunk muscles bilaterally
Q: pyramidal decussation is part of what tract?
Answer:
lateral corticospinal tract
Q: ventral tegmental decussation is part of what tract?
Answer:
rubrospinal tract
Q: pontocerebellar fibers
Answer:
pons –> cerebellum; primary motor cortex, primary sensory cortex, and primary visual cortex;
enter the contralateral middle cerebellar peduncle and gives rise to mossy fibers that reach almost
the entire cerebellar cortex
main origin of input: cortex
cells projecting: pontine nuclei
Q: spinocerebellar fibers<\/p>\n\n\n\n
Answer: Neuroscience FINAL EXAM \u2013 USA (Latest 2023\/ 2024 Update) Exam Prep with Questions and Verified Answers| 100% Correct| Grade A Neuroscience FINAL EXAM \u2013 USA (Latest2023\/ 2024 Update) Exam Prep withQuestions and Verified Answers| 100%Correct| Grade AQ: is ataxia ipsilateral or contralateral to the side of the lesion? why?Answer:Ipsilateral; pathways from the cerebellum to the […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[25],"tags":[],"class_list":["post-130301","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/130301","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/comments?post=130301"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/130301\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=130301"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=130301"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=130301"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
travel in four tracts: the dorsal and ventral spinocerebellar tracts for the lower extremities and the
cuneocerebellar and rostral spinocerebellar tracts
Q: afferent information about limb movement is conveyed to the cerebellum by the
_<\/strong><\/em> for the lower extremity<\/p>\n\n\n\n\n
(ipsilateral)
Answer:
dorsal spinocerebellar tract
Q: afferent information about limb movement is conveyed to the cerebellum by the
_<\/em><\/strong> for the upper extremity and neck<\/li>\n\n\n\n
(ipsilateral)
Answer:
cuneocerebellar tract
Q: ventral spinocerebellar tract
Answer:
information about activity of spinal cord interneurons for the lower extremity is carried by the
(double crossing)
Q: rostral spinocerebellar tract
Answer:
information about activity of spinal cord interneurons for the upper extremity is carried by the
(double crossing)
Powered by https:\/\/learnexams.com\/search\/study?query=<\/a><\/strong><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"