Central Nervous System & Special Senses · NEET PG Preparation Physiology
A lesion of the dorsal column-medial lemniscal pathway at the level of the cervical spinal cord will result in which of the following findings ipsila…
Practice question from Central Nervous System & Special Senses (NEET PG Preparation Physiology), with the correct answer and a step-by-step solution.
hard · MCQ · Q-128DB1
A lesion of the dorsal column-medial lemniscal pathway at the level of the cervical spinal cord will result in which of the following findings ipsilaterally below the lesion?
- A.Loss of pain and temperature sensation
- B.Loss of crude touch and pressure
- C.Loss of conscious proprioception, vibration, and fine touchCorrect answer
- D.Spastic paralysis and hyperreflexia
Solution
The dorsal columns (fasciculus gracilis and cuneatus) carry conscious proprioception, vibration, and fine (discriminative) touch. These fibers ascend ipsilaterally and cross in the medulla, so a spinal cord lesion causes ipsilateral deficits below the lesion.
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