Dorsal column (vibration/ fine touch/ proprioception) & spinothalamic tracts (lateral: pain/ temperature; anterior: crude touch/ pressure/ sensations)

Dorsal column (vibration/ fine touch/ proprioception) & spinothalamic tracts (lateral: pain/ temperature; anterior: crude touch/ pressure/ sensations)

localization of brainstem lesions - oculomotor and trochlea nuclei, abducens and facial nuclei, hypoglossal nucleus, dorsal motor nucleus, nucleus ambiguus, medial lemniscus, lateral spinothalamic tract, corticospinal tract

localization of brainstem lesions - oculomotor and trochlea nuclei, abducens and facial nuclei, hypoglossal nucleus, dorsal motor nucleus, nucleus ambiguus, medial lemniscus, lateral spinothalamic tract, corticospinal tract

Indirect spinothalamic pathways: these pathways mediate the affective and arousal components of pain, temperature, and simple tactile sensations

Indirect spinothalamic pathways: these pathways mediate the affective and arousal components of pain, temperature, and simple tactile sensations

cross-section of spinal cord diagram showing major spinal tracts | Return to HOMEPAGE

cross-section of spinal cord diagram showing major spinal tracts | Return to HOMEPAGE

Spinal Tracts: Dorsal columns/Medial lemniscal, Spinothalamic, Spinocerebellar, & Spinoreticular.

Spinal Tracts: Dorsal columns/Medial lemniscal, Spinothalamic, Spinocerebellar, & Spinoreticular.

Direct spinothalamic pathway: the neospinothalamic tract. The peripheral processes of these dorsal root ganglion cells end as receptors sensing pain, temperature, and simple tactile sensations. The central processes of these dorsal root ganglion cells synapse with the neurons of the nucleus proprius. The axons of these second-order neurons cross via the anterior white commissure, enter the contralateral white matter, ascend in the lateral funiculus, and synapse on third-order neurons located…

Direct spinothalamic pathway: the neospinothalamic tract. The peripheral processes of these dorsal root ganglion cells end as receptors sensing pain, temperature, and simple tactile sensations. The central processes of these dorsal root ganglion cells synapse with the neurons of the nucleus proprius. The axons of these second-order neurons cross via the anterior white commissure, enter the contralateral white matter, ascend in the lateral funiculus, and synapse on third-order neurons located…

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