Tina falls while climbing a tree and lands on her back.Her frightened parents take her to the emergency room,where she is examined.Her knee-jerk reflex is normal and she exhibits a plantar reflex (negative Babinski reflex).These results suggest that
A)Tina has injured one of her descending nerve tracts.
B)Tina has injured one of her ascending nerve tracts.
C)Tina has a spinal injury in the lumbar region.
D)Tina has a spinal injury in the cervical region.
E)Tina suffered no damage to her spinal cord.

Question

Quizplus · Accepted Answer

Tina's normal knee-jerk reflex and negative Babinski reflex suggest that there is no damage to her spinal cord. If there had been damage to her cord, these reflexes would have been abnormal.

Tina Falls While Climbing a Tree and Lands on Her