Rehabilitation Sciences 3062A/B Lecture 3: Lecture 3
12 May 2017
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Document Summary
*** need to know the pathways, questions will be asked on these pathways. *** know the 3 neurons, where they are, how they work. Proprioception and fine discriminative touch dcml (ex. Review: blood supply: know the picture (circle of willis and distribution of blood) Main components: 3 sections = brainstem (starting from the bottom going superiorly) Long tracts (descending & ascending: motor ventral, sensory - dorsal. Foramen magnum separates the spinal cord & cerebellum. Main things: starting at the top: cerebral peduncle they are the fiber tracts (ascending and descending, pons: basilar artery sits here, lateral to the midline groove are the pyramids coracospinal tract. 80% of the fibers will desiccate to the opposite side, 20% stay ipsilateral (same side) Between the upper half of the medulla and the lower half of the pons is what forms the (brainstem?) Composed of: multiple nuclei, multiple tracts.
