A 39-year-old woman was admitted to the local hospital after experiencing a gunshot wound to the lower part of her back. Radiographic examination revealed that the bullet was lodged in the vertebral canal at the level of the third lumbar vertebra. A comprehensive neurologic examination indicated that a complete lesion of the cauda equina had occurred.
-The following statements concerning this patient are likely to be true except which?
A) The cauda equina, which consists of anterior and posterior nerve roots below the level of the first lumbar segment, was sectioned at the level of the third lumbar vertebra.
B) The preganglionic sympathetic nerve fibers to the vesical sphincter that descend in the anterior roots of the fourth and fifth lumbar nerves were sectioned.
C) The preganglionic parasympathetic fibers to the detrusor muscle that descend in the anterior roots of the second, third, and fourth sacral nerves were sectioned.
D) The patient would have an autonomous bladder.
E) The bladder would fill to capacity and then overflow.
F) Micturition could be activated by powerful contraction of the abdominal muscles and manual pressure on the anterior abdominal wall in the suprapubic region.
Correct Answer:
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