Which tract transmits the sensation of vibration?

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Study for the Parkinson’s Disease Exam. Engage with detailed flashcards and multiple-choice questions, each offering hints and explanations. Prepare effectively for your exam!

Multiple Choice

Which tract transmits the sensation of vibration?

Explanation:
Vibration is carried by the dorsal column–medial lemniscus pathway. In the spinal cord, this pathway runs through the posterior (dorsal) column, which contains the fasciculus gracilis and fasciculus cuneatus. These tracts transmit fine touch, vibration, and proprioception from the body to the brain, ascending to the medulla, crossing, and then continuing to the thalamus and cortex. Nociception (pain) travels via the spinothalamic tract, not the dorsal column. Kinesthesia and proprioception describe movement-related senses; they are mediated by pathways that include the dorsal columns, but the specific tract conveying vibration is the posterior column.

Vibration is carried by the dorsal column–medial lemniscus pathway. In the spinal cord, this pathway runs through the posterior (dorsal) column, which contains the fasciculus gracilis and fasciculus cuneatus. These tracts transmit fine touch, vibration, and proprioception from the body to the brain, ascending to the medulla, crossing, and then continuing to the thalamus and cortex. Nociception (pain) travels via the spinothalamic tract, not the dorsal column. Kinesthesia and proprioception describe movement-related senses; they are mediated by pathways that include the dorsal columns, but the specific tract conveying vibration is the posterior column.

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