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G iv e n th a t th is p a tie n t h a d a c e r e b r

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Unformatted text preview: in c r e a s e d to n e o f th e m u s c le s o f th e r ig h t le g . A s th e p a tie n t w a lk e d , h e w a s n o te d to m o v e h is r ig h t le g in a s e m ic ir c le a n d to p la c e th e fo r e fo o t o n th e g r o u n d b e fo r e th e h e e l. E x a m in a tio n o f th e r ig h t s h o e s h o w e d e v id e n c e o f in c r e a s e d w e a r b e n e a th th e r ig h t to e s . G iv e n th a t th is p a tie n t h a d a c e r e b r o v a s c u la r l e s io n in v o lv in g th e c e r e b r a l c o r te x , w h ic h a r e a o f th e c o r te x w a s in v o lv e d to c a u s e th e s e s y m p to m s ? This patient had a cerebrovascular lesion involving the left precentral gyrus. The damage to the pyramidal cells that give origin to the corticospinal fibers was responsible for the right sided paralysis. “The increased tone of the paralyzed muscles was due to the loss of inhibition caused by involvement of the extrapyramidal fibers” Quiz on Thalamus & Cortex W h i l e e x a m i n i n g a n u n c o n s c i o u s p a t i e n t , a p...
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