Cecil’s motorcycle collided with a tree. When the ambulance arrived,he complained of loss of sensation and voluntary movement in hislower limbs, as well as impaired mobility in his upper limbs, especiallyhis hands. Examination revealed that the accident had permanentlydamaged his spinal cord. Cecil was able to breathe on his own and,with exercise, movement of his upper limbs eventually improved,although the mobility of his hands was still impaired, and he neverregained the use of his lower limbs. At which level was Cecil’s spinalcord injured? Explain how you were able to determine your answer.

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Cecil’s motorcycle collided with a tree. When the ambulance arrived,
he complained of loss of sensation and voluntary movement in his
lower limbs, as well as impaired mobility in his upper limbs, especially
his hands. Examination revealed that the accident had permanently
damaged his spinal cord. Cecil was able to breathe on his own and,
with exercise, movement of his upper limbs eventually improved,
although the mobility of his hands was still impaired, and he never
regained the use of his lower limbs. At which level was Cecil’s spinal
cord injured? Explain how you were able to determine your answer.

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