Cindy Montana's neuroanatomy review

Cindy Montana's neuroanatomy review - By Cindy Montana WUMS...

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Unformatted text preview: By Cindy Montana WUMS I Neuroscience 2006 Pathways Brainstem Atlas Brainstem Syndromes Somatosensory Pain Motor Autonomic Nervous System Oculomotor / Oculodominance Hypothalamus Limbic Sleep Memory Language References Note: If a slide says CLICK , click outside the buttons to advance the animation until CLICK disappears. Pathways Fine Touch Pain/Temperature Proprioception Corticospinal/Corticobulbar Rubrospinal/Tectospinal Reticulospinal Vestibulospinal MAIN Spinal Cord C gracile fasciculus cuneate fasciculus dorsal columns sacral lumbar thoracic cervical afferent A fiber 1 st order S L T dorsal root ganglion FINE TOUCH A fibers (large) enter the spinal cord medial to A , C fibers (small) CLICK MAIN SECTION Medulla gracile nucleus cuneate nucleus medial lemniscus 2 nd order sacral lumbar thoracic cervical CROSS internal arcuate fibers 2 nd order FINE TOUCH CLICK MAIN SECTION Pons trigeminal main sensory nucleus trigeminal ganglion trigeminal motor nucleus medial lemniscus 2 nd order sacral lumbar thoracic cervical trigeminal sensory FINE TOUCH CLICK MAIN SECTION Midbrain medial lemniscus 2 nd order inferior colliculus lateral lemniscus sacral lumbar thoracic cervical trigeminal sensory FINE TOUCH CLICK MAIN SECTION Midbrain superior colliculus red nucleus sacral lumbar thoracic cervical trigeminal sensory medial lemniscus 2 nd order lateral lemniscus FINE TOUCH CLICK MAIN SECTION Forebrain sacral lumbar thoracic cervical trigeminal sensory VPM* VPL* internal capsule 3 rd order click here for horizontal section primary somato- sensory cortex click here FINE TOUCH CLICK MAIN SECTION * These nuclei are slightly displaced in this view, to illustrate that trigeminal input VPM and body input VPL Internal Capsule Horizontal Section anterior limb posterior limb sacral lumbar thoracic cervical trigeminal sensory genu MAIN SECTION Spinal Cord sacral lumbar thoracic cervical S L dorsal root ganglion A fiber 1 st order C fiber 1 st order interneuron Lissauers tract substantia gelatinosa (RL II) nucleus proprius (RL III, IV) CROSS 2nd order tracts: spinothalamic/ spinoreticular/ spinomesencephalic anterior white commissure 2 nd order T C PAIN/TEMP A , C fibers (small) enter the spinal cord lateral to A fibers (large) posterior marginalis (RL I) CLICK MAIN SECTION RL = Rexed lamina Medulla sacral lumbar thoracic cervical trigeminal sensory trigeminal afferent 1 st order trigeminal spinal tract 1 st order trigeminal spinal nucleus CROSS PAIN/TEMP 2nd order tracts: spinothalamic/ spinoreticular/ spinomesencephalic medullary reticular formation CLICK Show Spinoreticular Tract MAIN SECTION Medulla sacral lumbar thoracic cervical trigeminal sensory trigeminal afferent 1 st order trigeminal spinal tract 1 st order trigeminal spinal nucleus CROSS PAIN/TEMP 2nd order tracts: spinothalamic/ spinoreticular/ spinomesencephalic Spinoreticular tract in the medulla medullary reticular formation MAIN SECTION Pons...
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Cindy Montana's neuroanatomy review - By Cindy Montana WUMS...

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