3 Questions
Which of the following is true about the tract of Lissauer?
It is involved in neurological deficits seen in pernicious anemia
Which of the following tracts is not a part of the anterolateral pathways?
Fasciculus gracilis
What is the function of the spinothalamic pathway?
Transmitting pain and temperature information
Study Notes
- The anterolateral pathways include the spinothalamic pathway and the spinocerebellar tract.
- First order neurons from dorsal root sensory fibers synapse with second order neurons in the dorsal horns of the spinal cord.
- Afferent fibers from peripheral nerves enter the spinal cord via the dorsal root and ascend/descend two spinal segments in the tract of Lissauer prior to synapsing in the dorsal horn gray matter.
- The tract of Lissauer is a small strand capping the posterior horn close to the entrance of the posterior nerve roots and is present throughout the spinal cord.
- It is most developed in the upper cervical regions and is involved in neurological deficits seen in pernicious anemia.
- During a complete occlusion of the anterior artery of the spinal cord, the tract of Lissauer is the only tract spared along with the dorsal columns.
- The spinothalamic pathway is involved in transmitting pain and temperature information.
- The spinocerebellar tract is involved in transmitting proprioceptive information.
- Other tracts within the anterolateral pathways include the fasciculus cuneatus, fasciculus gracilis, and substantia gelatinosa.
- These pathways are important for sensory perception and motor function.
Test your knowledge on the anterolateral pathways, a crucial part of the spinal cord responsible for transmitting sensory information and motor function. Learn about the different tracts and their functions, the structure of the dorsal horn, and the role of the tract of Lissauer in neurological deficits. Challenge yourself with questions on the spinothalamic pathway and the spinocerebellar tract, and other key elements of this vital pathway. Sharpen your understanding of the sensory perception and motor function with this
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