55. dorsal 1/3 rd resulting from occlusion of the posterior spinal artery ventral 2/3 rd resulting from occlusion of the anterior spinal artery
56. Descending tracts By the end of this lecture, students should be able to: define the tract enumerate the tracts according to their functional components illustrate and trace the neuronal chain of each tract apply their knowledge of anatomy to correlate with the clinical condition in relation to the injury to these tracts
57.
58. cerebellum premotor cortex motor cortex motor unit muscle spindle pyramidal tract sp cd internreurons & central pattern generator extrapyramidal tracts premotor cortex SMA PMC basal ganglia cortical sensory area MOTOR SYSTEM I II III IV V