Unit 7 Descending Tracts Neuro Test 2 (USAHS) with Correct Solutions

Unit 7 Descending Tracts Neuro Test 2 (USAHS) with Correct Solutions A lesion to the primary motor cortex in frontal lobe would cause? - Answer -Severe motor deficits on contralateral side of body. A lesion to the motor association cortex in frontal lobe would cause? - Answer -Deficits in motor planning (Apraxia) A lesion to the primary sensory cortex in parietal lobe would cause? - Answer -Severe sensory deficits on contralateral side of body. A lesion to the somatosensory association cortex in parietal lobe would cause? - Answer -Higher order sensory analysis Where is most of the white matter of the spinal cord? - Answer -Cervical segments Cervical enlargement? - Answer -C3-T1 Lumbosacral enlargement? - Answer -L1-S2 Skeletal muscles are innervated by motor nuclei that are located in? - Answer -Rexed Laminae (9) of the Ventral Horn Lateral motor systems control what mvmt and favor what? - Answer -- Distal limb mvmt - Flexors Medial motor systems control what mvmt and favor what? - Answer -- Prox limb/trunk mvmts - Extensors Anterior spinal artery feeds? - Answer -Ventral col