While moving a large box in his garage, Carl hurt his back. Within hours, the pain in his back was radiating down the medial side of his left thigh and knee. It was especially difficult for Carl to flex his left hip and extend his left knee. He could not stand the pain, so he went to the emergency room. Radiographs and an MRI revealed a bulging intervertebral disk.Using a dermatome map, indicate which spinal nerve was most likely affected?Multiple ChoiceC1C2C3C4C5C6C7C8T1T2T3T4T5T6T7T8T9T10T11T12L1L2L3L4L5CoS1S2S3S4S5 PrevQuestion 16 of 20 Total16 of 20Visit question map
Question
While moving a large box in his garage, Carl hurt his back. Within hours, the pain in his back was radiating down the medial side of his left thigh and knee. It was especially difficult for Carl to flex his left hip and extend his left knee. He could not stand the pain, so he went to the emergency room. Radiographs and an MRI revealed a bulging intervertebral disk.Using a dermatome map, indicate which spinal nerve was most likely affected?Multiple ChoiceC1C2C3C4C5C6C7C8T1T2T3T4T5T6T7T8T9T10T11T12L1L2L3L4L5CoS1S2S3S4S5 PrevQuestion 16 of 20 Total16 of 20Visit question map
Solution
The symptoms described by Carl, such as pain radiating down the medial side of his left thigh and knee, difficulty in flexing his left hip and extending his left knee, and a bulging intervertebral disk, suggest that the affected spinal nerve is most likely L4 or L5. However, since the question is multiple choice and only one answer can be selected, the best choice would be L5. This is because the L5 nerve root is most commonly associated with these symptoms and the dermatome map shows that it covers the medial side of the thigh and knee.
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