Dorsal Column Medial Lemniscus Tract Quiz
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Questions and Answers

What type of sensory information does the DORSAL COLUMN MEDIAL LEMNISCUS TRACT convey?

  • Light touch and vibration (correct)
  • Taste and smell
  • Auditory information
  • Pain and temperature
  • Where do the first order neurons carrying afferent information synapse with second order neurons?

  • Dorsal root ganglia (correct)
  • Cerebellum
  • Spinal cord white matter
  • Ventral root ganglia
  • Which part of the spinal cord contains ascending fibers from C1-T6 for tactile and proprioceptive information?

  • Fasciculus cuneatus (correct)
  • Fasciculus gracillis
  • Dorsal root ganglia
  • Central grey matter
  • Where do the axons of the second-order neurons sweep around after synapsing in the medulla?

    <p>Central grey matter</p> Signup and view all the answers

    What is the name of the compact bundle through which the fibers ascend after decussating?

    <p>Medial Lemniscus</p> Signup and view all the answers

    Where do the fibers of the DORSAL COLUMN MEDIAL LEMNISCUS TRACT terminate by synapsing on the third-order neurons?

    <p>Ventral posterolateral nucleus of the thalamus</p> Signup and view all the answers

    Study Notes

    Dorsal Column Medial Lemniscus Tract

    • Conveys tactile and proprioceptive sensory information

    Synapse of First and Second-Order Neurons

    • First-order neurons carrying afferent information synapse with second-order neurons in the medulla

    Spinal Cord Components

    • The cervical and thoracic regions of the spinal cord (C1-T6) contain ascending fibers for tactile and proprioceptive information

    Axons of Second-Order Neurons

    • Axons of second-order neurons sweep around the central canal in the medulla after synapsing

    Compact Bundle

    • The compact bundle is called the medial lemniscus, through which fibers ascend after decussating

    Termination of Dorsal Column Medial Lemniscus Tract

    • Fibers of the Dorsal Column Medial Lemniscus Tract terminate by synapsing on third-order neurons in the thalamus

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    Description

    Test your knowledge about the conveying of sensory information related to touch, proprioception, vibration, and discrimination through the Dorsal Column Medial Lemniscus Tract. Explore the pathways and synapses involved in this sensory transmission process.

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