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- Posterior_column abstract "The posterior column (dorsal column) refers to the area of white matter in the dorsomedial side of the spinal cord. It is made up of the fasciculus gracilis and fasciculus cuneatus and itself is part of the dorsal funiculus. It is part of an ascending pathway that is important for well-localized fine touch and conscious proprioception called the posterior column-medial lemniscus pathway.Joint capsules, tactile and pressure receptors send a signal through the dorsal root ganglia up through the fasciculus gracilis for lower body sensory impulses and the fasciculus cuneatus for upper body impulses. Once the fasciculus gracilis reaches the nucleus gracilis and the fasciculus cuneatus reaches the nucleus cuneatus in the lower medulla, they begin to cross over the medulla as the internal arcuate fibers. When they reach the contralateral side, they become the medial lemniscus, which is the second part of the posterior column-medial lemniscus pathway.Lesions in this pathway can diminish or completely abolish tactile sensations and movement or position sense below the lesion.".
- Posterior_column thumbnail Spinal_cord_tracts_-_English.svg?width=300.
- Posterior_column wikiPageID "4911573".
- Posterior_column wikiPageRevisionID "602976338".
- Posterior_column caption "Cross-section of the spinal cord".
- Posterior_column caption "The posterior column is made up of the fasciculus gracilis and fasciculus cuneatus".
- Posterior_column hasPhotoCollection Posterior_column.
- Posterior_column image "Gray672.png".
- Posterior_column name "Posterior column".
- Posterior_column subject Category:Central_nervous_system_pathways.
- Posterior_column subject Category:Spinal_cord.
- Posterior_column type AnatomicalStructure.
- Posterior_column type BiologicalObject.
- Posterior_column comment "The posterior column (dorsal column) refers to the area of white matter in the dorsomedial side of the spinal cord. It is made up of the fasciculus gracilis and fasciculus cuneatus and itself is part of the dorsal funiculus.".
- Posterior_column label "Coluna posterior".
- Posterior_column label "Posterior column".
- Posterior_column sameAs Coluna_posterior.
- Posterior_column sameAs m.02p8p_s.
- Posterior_column sameAs Q339528.
- Posterior_column sameAs Q339528.
- Posterior_column wasDerivedFrom Posterior_column?oldid=602976338.
- Posterior_column depiction Spinal_cord_tracts_-_English.svg.
- Posterior_column isPrimaryTopicOf Posterior_column.
- Posterior_column name "Posterior column".
