If a patient experiences enlargement of the normally rudimentary central canal of the spinal cord in the MID cervical region, which, if any, muscular functions would become abnormal first?
Correct Answer: Shoulder abduction
Description: Ans. C. Shoulder abductionMotor neurons controlling axial muscles are positioned most medially in the ventral horn area. An enlarged central canal would impinge on that pool of motor neurons first.
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Physiology
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